IV. SYSTEMATIC CATALOGUE
Subclass Heterodonta
Order Veneroida
Subclass HETERODONTA Neumayr, 1884 |
 Explanation of Plate 10 Fig. 1. Izumicardia parva Ichikawa and Maeda: type-species of genus Izumicardia. Holotype (OCU MM286), rubber cast from right external mould, × 2. Loc. Mikumayama, Sumoto (Campanian, Izumi group). Reproduced from Ichikawa and Maeda, 1963, pl. 9, fig. Id. Fig. 2. The same species. Topotype (OCU MM291), rubber cast from right internal mould, × 2. Loc. ditto. Reproduced from Ichikawa and Maeda, 1963, pl. 9, fig. 7a. Fig. 3. Clisocolus (Crenocolus) crenulatus Ichikawa and Maeda: type-species of subgenus Crenocolus. Holotype (OMM F1025), right valve, ×1. Loc. Azenotani, Izumi mountains (Campanian, Izumi group). Reproduced from Ichikawa and Maeda, 1966, pl. 7, figs. 1a-c. 3a: external view, 3b: internal view, 3c: upper view. Fig. 4. Izumia trapezoidalis Ichikawa and Maeda; type-species of genus Izumia, Topotype (OCU MM276), clay cast from left internal mould, × 3. Loc. Mikumayama, Sumoto (Campanian, Izumi group). Reproduced from Ichikawa and Maeda, 1963, pl. 10, fig. 8b. Fig. 5. The same species. Holotype (OCU MM262), right internal mould, × 2. Loc. ditto. Reproduced from Ichikawa and Maeda, 1963, pl. 10, fig. 1a. × Fig. 6. The same species. Topotype (OCU MM337), clay cast from right internal mould, × 3. Loc. ditto. Reproduced from Ichikawa and Maeda, 1963, pl. 10, fig. 7b. Fig. 7. Eoursivivas matsumotoi (Hase): type-species of genus Eoursivivas. Right internal mould (GF K63050), × 2. Loc. Sakayori-agaru, Yatsushiro (Neocomian, Kawaguchi formation). Reproduced from Ota, 1964, pl. 21, fig. 1. Fig. 8. The same species. Left internal mould (GF K63061), ×1.8. Loc. ditto. Reproduced from Ota, 1964, pl. 21, fig. 3. Fig. 9. Pulsidis nagatoensis Ota: type-species of genus Pulsidis, Holotype (GF Y6301), right internal mould, × 2.5. Loc. Yoshimo, Shimonoseki (Neocomian, Yoshimo formation). Fig. 10. Nipponicorbula mifunensis Ota: type-species of genus Nipponicorbula. Paratype (GF M63002), right valve, × 3. Loc. Asanoyabu, Kamimasuki (Cenomanian or Turonian, Mifune group). Reproduced from Ota, 1964, pl. 21, fig. 19. Fig. 11. Praecaprotina yaegashii (Yehara): type-species of genus Praecaprotina. Syntype (IGPS not registered), bivalved specimen, ×1. Loc. Moshi, Iwaizumi (Aptian, Miyako group). Reproduced from Yabe and Nagao, 1926, pl. 7, fig. 1. |
Family FIMBRIIDAE Nicol, 1950
Genus Schafhaeutlia Cossmann, 1897
Schafhaeutlia mellingi japonica Ichikawa
1950. Schafhäutlia mellingi Hauer japonica Ichikawa, p, 250, pl. 5, fig. 8.
Type. —Holotype (UMUT MM5177) from Shimoyama, Sakawa, Kochi Pref.
Age and distribution. —Carnian. Kochigatani group (lower part) in Sakawa area.
Schafhaeutlia nakazawai Tokuyama
1956. Schafhäut;lia cf. astartiformis (Münster): Nakazawa, p. 243, pl. 3, figs. 15-17.- 1960c. Schafhäutlia nakassawai Tokuyama, p. 211, pl. 13, figs. 12-14.
Type. —Holotype (UMUT MM4593) from Hirabarazaka, Mine, Yamaguchi Pref.
Age and distribution. —Carnian. Mine group (Hirabara formation) in Mine area, and Nabae group (N2 and N3 formations) in Maizuru zone.
Genus Sphaeriola Stoliczka, 1871
Sphaeriola nipponica Hayami [Pl. 6, Fig. 2]
1959h. Sphaeriola nipponica Hayami, p. 74, pl. 8, figs. 10-13.
Type. —Holotype (UMUT MM3450) from Higashinagano, Toyoda, Yamaguchi Pref.
Age and distribution. —Sinemurian. Toyora group (Higashinagano formation) in Toyoda area.
 Explanation of Plate 6 Fig. 1. Pterotrigonia (Pterotrigonia) hokkaidoana (Yehara). Left valve (GK not registered), × . Loc. Haipe, Tanohata (Aptian, Miyako group). Fig. 2. Sphaeriola nipponica Hayami. Holotype (UMUT MM3450), rubber cast from right internal mould, ×1. Loc. Higashinagano, Toyoda (Sinemurian, Toyora group). Fig. 3. Astarte (Astarte) subsenecta Yabe and Nagao. Rubber cast from left external mould (GK H6405), ×1.5. Loc. Ichinose-bashi, Nakazato (up. Neocomian or Aptian, Ishido formation). Fig. 4. The same species. Rubber cast from left internal mould (GK H6403), ×1.5. Loc. ditto. Fig. 5. Astarte (Yabed) shinanoensis Yabe and Nagao: type-species of subgenus Yabea. Rubber cast from internal (5a) and external (5b) moulds of a left valve (GK H6652), ×1.5. Loc. ditto. Fig. 6. Eriphyla (Eriphyla) miyakoensis Nagao. Topotype (GK H6433), right valve, ×1. Loc. Hiraiga, Tanohata (Aptian, Miyako group). Fig. 7. The same species. Topotype (GK H6436), right valve, ×1.5. Loc. ditto. Fig. 8. Anthonya subcantiana Nagao. Topotype (GK H6464), right valve, ×1.5. Loc, Haipe, Tanohata (Aptian, Miyako group). Fig. 9. The same species. Left valve (GK H6471), ×1.5. Loc. Hiraiga, Tanohata (Aptian, Miyako group). Fig. 10. Cardinia. toriyamai Hayami. Holotype (UMUT MM2918), plaster cast from left internal mould, ×1. Loc. Higashinagano, Toyoda (Sinemurian, Toyora group). Fig. 11. The same species. Paratype (UMUT MM2917), plaster cast from right external mould, ×1. Loc. ditto. Fig. 12. Minepharus triadicus (Tokuyama): type-species of genus Minepharus. Holotype (UMUT MM4470), left valve, ×1. Loc. Hirabarazaka, Mine (Carnian, Mine group). Fig. 13. The same species. Paratype (UMUT MM4475), rubber cast from left internal mould, ×1. Loc. ditto. Fig. 14. Globocardium sphaeroideum (Forbes): type-species of genus Globocardium. Left valve (GK not registered), ×1. Loc. Hiraiga, Tanohata (Aptian, Miyako group). |
Genus Fimbria Megerle von Muhlfeld, 1811
Fimbria soxnensis Hayami
1961b. Fimbria somensis Hayami, p. 120, pl. 16, figs. 11-13.
Type. —Holotype (UMUT MM3687) from Sugaya, Soma, Fukushima Pref.
Age and distribution. —Bathonian (or thereabout). Soma group (Yamagami formation) in Soma area.
Fimbria? tenuiconcha Hayami
1959c. Fimbria (?) tenuiconcha Hayami, p. 68, pl. 5, fig. 32.
Type. —Holotype (UMUT MM2973) from Akaiwazaki (Hosoura), Shizukawa, Miyagi Pref.
Age and distribution. —Bajocian. Hashiura group (Aratozaki formation) in Shizukawa area.
Superfamily CARDITACEA Fleming, 1820
Family PERMOPHORIDAE van de Poel, 1959
Subfamily PERMOPHORINAE van de Poel, 1959
Genus Triaphorus Marwick, 1953
Triaphorus hamadaensis (Yabe and Shimizu)
1927. Myoconcha hamadaensis Yabe and Shimizu, p. 134, pl, 13, figs. 13-16.
Type. —Syntype (IGPS not registered) from Hamada, Rifu, Miyagi Pref.
Age and distribution. —Ladinian. Rifu formation in Rifu area.
Triaphorus trapezoidalis (Kobayashi and Ichikawa)
1950a, Myoconcha trapezoidalis Kobayashi and Ichikawa, p. 213, pl. 1, figs. 12, 13.- 1950a. Myoconcha trapezoidalis var, posteroexpansa Kobayashi and Ichikawa, p. 214, pl. 1, fig. 11.-1959b. Myoconcha trapezoidalis Kobayashi and Ichikawa; Tamura, p. 223, pl. 2, fig. 21.
Type. —Holotype (UMUT MM5148) from Umenokidani, Sakawa, Kochi Pref. Holo type of Myoconcha trapezoidalis var. posteroexpansa (UMUT MM5151) from the same locality.
Age and distribution. —Carnian. Kochigatani group (lower part) in Sakawa and Sakamoto area.
Subfamily MYOCONCHINAE Newell, 1957
Genus Myoconcha Sowerby, 1824
Myoconcha planata Kobayashi and Ichikawa
1954a. Myoconcha planata Kobayashi and Ichikawa, in Ichikawa, p. 62, pl. 7, fig. 7.
Type. —Holotype (UMUT MM5422) from Arai, Itsukaichi, Tokyo Pref.
Age and distribution. —Triassic (precisely unknown). Arai formation in Itsukaichi area.
Myoconcha modesta Hayami
1965b. Myoconcha modesta Hayami, p. 76, pl. 13, fig. 1.
Type. —Holotype (GK H6391) from Koikorobe, Tanohata, Iwate Pref.
Age and distribution. —Aptian. Miyako group (Tanohata formation) in Tanohata area.
Family CARDITIDAE Fleming, 1828
Genus Tutcheria Cox, 1946
Tutcheria itoi Hayami
1969a. Tutcheria itoi Hayami, p. 28, pl. 3, figs. 1-5.
Type. —Holotype (GK H6859) from Higashinagano, Toyoda, Yamaguchi Pref.
Age and distribution. —Sinemurian. Toyora group (Higashinagano formation) in Toyoda area.
Genus Ludbrookia Chavan, 1951
Ludbrookia sp. cf. L. tenuicosta (Sowerby)
1965b. Pseudocardia sp. cf. P. tenuicosta (Sowerby): Hayami, p. 77, pl. 7, figs. 1-3.- 1972. Pseudocardia sp. cf. P. tenuicosta (Sowerby): Shikama and Suzuki, pl, 6, fig. 2.
Age and distribution. —Aptian. Miyako group (Tanohata formation) in Miyako area, and Choshi formation in Choshi area.
Genus Xenocardita Vokes, 1946
Xenocardita amanoi (Hayami)
1957b. Cardita (?) sp.: Amano, p. 98, pl. 2, text-fig. 2, figs. 27-29.-1965b. Pseudocardia amanoi Hayami, p. 79, pl. 7, figs. 4-7, pl. 15, figs. 1, 2.-compare 1972. Pseudocardia amanoi Hayami: Shikama and Suzuki, pl.6, fig. 3.
Type. —Holotype (GK H6777) from Hagino, Kahoku, Kochi Pref.
Age and distribution. —Aptian. Lower Monobegawa group (Hagino formation) in Mono- begawa area.
Genus Izumicardia Ichikawa, 1963
Izumicardia parva Ichikawa and Maeda [Pl. 10, Figs. 1, 2]
1963. Izumicardia parva Ichikawa and Maeda, p. 120, text-fig. 2, pl. 9, figs. 1-7.
Type. —Holotype (OCU MM286) from Mikumayama, Sumoto (Awaji), Hyogo Pref.
Age and distribution. —Campanian. Izumi group (Yoroizaki sandstone) in Awaji island.
Family uncertain
Cardita ? sulcataria Hayami
1965. "Cardita" sulcataria Hayami, in Matsumoto, Hayami and Hashimoto, p. 11, pl. 2, figs. 2-4.
Type. —Holotype (CPC no. 13) from a core of PK-3 well at the depth of 2036.1-2039.1 m, Peikang, west Formosa.
Age and distribution. —Aptian. Buried Cretaceous formation in west Formosa.
Superfamily CRASSATELLACEA Férussac, 1822
Family ASTARTIDAE d'Orbigny, 1844
Subfamily ASTARTINAE d'Orbigny, 1844
Genus Astarte Sowerby, 1816
Subgenus Astarte Sowerby, 1816
Astarte (Astarte) sakamotoensis Tamura
1959c, Astarte sakamotoensis Tamura, p. 29, pl. 5, figs. 1-3.-1960c. Astarte sakamotoensis Tamura: Tamura, p. 286, pl. 33, figs. 1, 2.-1960d. Astarte sakamotoensis Tamura: Tamura, p. 240.
Type. —Holotype (UMUT MM2976) from Ohira, Yatsushiro, Kumamoto Pref.
Age and distribution. —Upper Jurassic-Berriasian. Torinosu group in Yatsushiro, Saka moto and Sakuradani areas, and Soma group (Nakanosawa and Koyamada formations) in Soma area.
Astarte (Astarte) defecta Tamura
1959c. Astarte defecta Tamura, p. 29, pl. 5, figs. 4-7.-1960c. Astarte defecta Tamura: Tamura, p. 286.-1960d. Astarte defecta Tamura: Tamura, p. 240.
Type. —Holotype (UMUT MM2978) from Uminoura, Tanoura, Kumamoto Pref.
Age and distribution. —Upper Jurassic. Torinosu group in Tanoura, Sakamoto and Sakawa areas, and Soma group (Nakanosawa formation) in Soma area.
Astarte (Astarte) sp. cf. A. (A.) spitiensis Stoliczka
1960. Astarte cf, spitiensis Stoliczka: Hayami, Sugita and Nagumo, p. 94, pl. 8, figs. 16,17.
Age and distribution. —Tithonian-Berriasian. Shishiori group (Kogoshio formation) in Kesennuma area, and Isokusa formation in Oshima area.
Astarte (Astarte) subsenecta Yabe and Nagao [Pl. 6, Figs. 3, 4]
1926. Astarte subsenecta Yabe and Nagao, in Yabe, Nagao and Shimizu, p. 47, pl. 13, figs. 14-16, pl. 14, fig. 11.-1965b. Astarte (Astarte) subsenecta Yabe and Nagao; Hayami, p. 81, pl. 7, figs. 10-18, pl. 14, figs. 1-5.-compare 1965b. Astarte (Astarte) sp. cf. A. (A.) subsenecta Yabe and Nagao: Hayami, p. 84, pl. 11, figs. 9, 10.-1972. Astarte (Astarte) subsenecta Yabe and Nagao: Shikama and Suzuki, pl. 6, fig. 4.
Type. —Lectotype designated by Hayami (1965b, p. 82) (IGPS no. 22534) from Ishido, Ohinata, Nagano Pref.
Age and distribution. —Upper Neocomian-Albian. Ishido formation in Sanchu area, Haidateyama formation in Nozu area, Yatsushiro formation in Yatsushiro area, Hanoura formation in Katsuuragawa area, and Choshi formation in Choshi area.
Astarte (Astarte) costata Yabe and Nagao
1926. Astarte subsenecta var. costata Yabe and Nagao, in Yabe, Nagao and Shimizu, p. 48, pl. 14, fig. 10.-1965b. Astarte (Astarte) costata Yabe and Nagao: Hayami, p. 85,
pl. 8, figs. 1, 2.-1972. Astarte (Astarte) costata Yabe and Nagao: Shikama and Suzuki, pl. 6, fig. 5.
Type. —Holotype by monotypy (IGPS no. 22483) from Ôze, Nakazato, Gumma Pref.
Age and distribution. —Upper Neocomian-Aptian. Ishido formation in Sanchu area, and Choshi formation in Choshi area.
Subgenus Nicaniella Chavan, 1945
Astarte (Nicaniella) higoensis Tamura
1959c. Astarte Mgoensis Tamura, p. 28, pl. 5, figs, 11, 12,-1960d. Astarte higoensis Tamura: Tamura, p. 240.
Type. —Holotype (UMUT MM2986) from Tsurubami, Sakamoto, Kumamoto Pref.
Age and distribution. —Upper Jurassic. Torinosu group in Sakamoto and Sakawa areas.
Astarte (Nicaniella) semicostata Nagao
1934. Astarte semicostata Nagao, p. 221, pl. 31, figs. 3-5, pl. 32, fig. 6 (non pl. 25, fig. 2). -1965b. Astarte (Astarte) semicostata Nagao: Hayami, p. 86, pl. 8, figs. 3-10.
Type. —Lectotype designated by Hayami (1965b, p. 86) (GMH no. 6792) from Hiraiga, Tanohata, Iwate Pref.
Age and distribution. —Aptian. Miyako group (Hiraiga formation) in Tanohata area.
Subgenus Trautscholdia Cox and Arkell, 1948
Astarte (Trautscholdia) ogawensis Kimura
1956. Astarte ogawensis Kimura, p. 86, pl. 1, fig. 9.-1959c. Astarte ogawensis Kimura: Tamura, p. 29, pl. 5, figs. 8-10.-1960c. Astarte ogawensis Kimura: Tamura, p. 286.- 1960d. Astarte ogawensis Kimura: Tamura, p. 240.
Type. —Holotype (UMUT MM7164) from Nioigataki, Sakawa, Kochi Pref.
Age and distribution. —Upper Jurassic. Torinosu group in Sakawa, Sakamoto, Yatsushiro and Tanoura areas, and Soma group (Nakanosawa formation) in Soma area.
Astarte (Trautscholdia) minor Nagao
1934. Astarte minor Nagao, p. 220, pl. 28, figs. 5-10.-1965b, Astarte (Nicaniella) minor Nagao: Hayami, p. 91, pl. 8, figs. 19-22.
Type. —Lectotype designated by Hayami (1965b, p. 91) (IGPS no. 66425) from Hiraiga, Tanohata, Iwate Pref.
Age and distribution. —Aptian-Albian. Miyako group (Hiraiga and Aketo formations) in Tanohata area.
Subgenus Yabea Hayami, 1965
Astarte (Yabea) kambarensis Kimura
1956. Astarte kambarensis Kimura, p. 85, pl. 1, fig. 7.-1956. Astarte kambarensis var. elongata Kimura, p. 86, pl. 1, fig. 8.-1960c. Astarte kambarensis Kimura: Tamura, p. 286, pl. 33, figs. 14-18.-1960d. Astarte kambarensis Kimura: Tamura, p. 240.
Type. —Holotype (UMUT MM7166) from Kambaradani, Sakawa, Kochi Pref. Holo type of Astarte kambarensis var. elongata (UMUT MM7168) from the same locality.
Age and distribution. —Upper Jurassic-Berriasian. Torinosu group in Sakawa area, and Soma group (Nakanosawa and Koyamada formations) in Soma area.
Astarte (Yabea) shinanoensis Yabe and Nagao [Pl. 6, Figs. 5a, b]
1926. Astarte shinanoensis Yabe and Nagao, in Yabe, Nagao and Shimizu, p. 47, pl. 13, figs. 29, 30.-1965b. Astarte (Yabea) shinanoensis Yabe and Nagao: Hayami, p. 93, pl. 8, figs. 25, 26, pl. 14, figs. 7, 8.-compare 1965b. Astarte (Yabea) sp. aff. A. (Y.) shinanoensis Yabe and Nagao: Hayami, p. 94, pl. 9, fig, 1, pl. 14, fig. 9.
Type. —Lectotype (IGPS no. 22544) designated by Hayami (1965b, p. 93) from Ishido, Ohinata, Nagano Pref.
Age and distribution. —Upper Neocomian-Aptian. Ishido formation in Sanchu area.
Astarte (Yabea) akatsui Hayami
1965b. Astarte (Yabea) akatsui Hayami, p. 95, pl. 9, figs. 2-5, pl. 14, figs. 10, 11.-compare 1972. Astarte (Yabea) akatsui Hayami: Shikama and Suzuki, pl. 6, fig. 6.
Type. —Holotype (GK H6171) from Bisho, Toyo, Kumamoto Pref.
Age and distribution. —Albian. Yatsushiro formation in Yatsushiro area.
Astarte (Yabea ?) sp.
1959c. Astarte? sp. aff. hermanni Oppel: Tamura, p. 30, pl. 5, fig. 14.
Age and distribution. —Upper Jurassic. Torinosu group in Sakamoto area.
Subgenus Leckhamptonia Cox and Arkell, 1948
Astarte (Leckhamptonia ?) subomalioides Nagao
1934. Astarte subomalioides Nagao, p. 219, pl. 27, figs. 3, 4.-1934. Astarte semicostata Nagao, p. 221 (pars), pl. 25, fig. 2 (non pl. 31, figs. 3-5, pl. 32, fig. 6).-1965b. Astarte (Freiastarte') subomalioides Nagao: Hayami, p. 88, pl. 8, figs. 12-18.-compare 1965b. Astarte (Freiastarte) sp. cf. A. (F.) subomalioides Nagao: Hayami, p. 90, pl. 8, fig. 24.
Type. —Lectotype (IGPS no. 66446) from Hiraiga, Tanohata, Iwate Pref.
Age and distribution. —Aptian-Albian. Miyako group (Hiraiga and Aketo formations) in Tanohata and Omoto areas.
Genus Neocrassina Fischer, 1886
Neocrassina sp. cf. N. subdepressa (Blake and Hudleston)
1960c. Astarte subdepressa Blake and Hudleston: Tamura, p. 287, pl. 33, figs. 19-22.
Age and distribution. —Kimmeridgian-Berriasian. Soma group (Nakanosawa and Koya mada formations) in Soma area.
Genus Coelastarte Böihm, 1893
Coelastarte cardiniiformis Hayami
1958c. Coelastarte cardiniiformis Hayami, p. 106, pl. 7, figs. 12-16.-compare 1959c. Coelastarte sp. ex gr. cardiniiformis Hayami: Hayami, p. 67, pl. 5, figs. 25, 26.
Type. —Holotype (UMUT MM2880) from Hosoura, Shizukawa, Miyagi Pref.
Age and distribution. —Hettangian. Shizukawa group (Niranohama formation) in Shizu kawa area.
Coelastarte somensis (Tamura)
1960c. Astarte (Coelastarte) somensis Tamura, p. 287, pl. 33, figs. 11-13.
Type. —Holotype (UMUT MM3314) from Yamashita, Kashima, Fukushima Pref.
Age and distribution. —Kimmeridgian. Soma group (Nakanosawa formation) in Soma area.
Genus Praeconia Stoliczka, 1871
Praeconia sp. cf. P. tetragona (Terquem)
1959h. Praeconia cf. tetragona (Terquem): Hayami, p. 71, pl. 7, figs. 15, 16, pl. 8, figs. 2-4.
Age and distribution. —Sinemurian. Toyora group (Higashinagano formation) in Toyora area.
Genus uncertain
Astarte ? iwayai Ichikawa
1954d. Astarte? iwayai Ichikawa, p. 65, pl. 4, figs. 4, 5.
Type. —Holotype (UMUT MM5469) from Ura (Usugatani), Kaminaka, Tokushima Pref.
Age and distribution. —Carnian. Kochigatani group (lower part) in Sakuradani area.
Astarte? kumamotoensis (Tamura)
1959e. Eomiodon kumamotoensis Tamura, p. 115, pl. 12, figs. 17, 18.-1960d. Eomiodon kumamotoensis Tamura: Tamura, p. 240.
Type. —Holotype (UMUT MM3105) from Tsurubami, Sakamoto, Kumamoto Pref.
Age and distribution. —Upper Jurassic. Torinosu group in Sakamoto and Sakuradani areas.
Subfamily ERIPHYLINAE Chavan, 1952
Genus Eriphyla Gabb, 1864
Subgenus Eriphyla Gabb, 1864
Eriphyla (Eriphyla) miyakoensis (Nagao)
1927. Astarte miyakoensis Nagao, in Yabe, pl. 4, fig. 5 (nom. nud.).-1934. Astarte miyako ensis Nagao, p. 218 pl. 30, fig. 8, pl. 32, figs. 1, 3-5.-compare 1957. Astarte cf, miyakoensis Nagao: Amano, p. 96, pl. 2, figs. 19-24.-1965b. Eriphyla (Miyakoella) miyakoensis (Nagao): Hayami, p. 101, pl. 10, figs. 1-8, pl. 11, figs. 1-8.-compare 1965b. Eriphyla (Miyakoella) sp. cf. E. (M.) miyakoensis (Nagao): Hayami, p. 104.
Type. —Lectotype designated by Hayami (1965b, p. 101, erroneously regarded as holotype) (IGPS no. 7105), which was illustrated by Yabe (1927, pl. 4, fig. 5) and Nagao (1934, pl. 32, fig. 3), from Hiraiga, Tanohata, Iwate Pref.
Age and distribution. —Aptian-Albian. Miyako group (Tanohata, Hiraiga and Aketo formations) in Tanohata and Omoto areas.
Eriphyla (Eriphyla) pulchella Hayami
1965b. Eriphyla (Eriphyla) pulchella. Hayami, p. 98, pl. 9, figs. 6-12, pl, 14, fig. 6.-? 1969. Eriphyla (Eriphyla) pulchella Hayami: Hatai, Kotaka and Noda, p. 33.-compare 1972. Eriphyla (Eriphyla) sp. cf. E. (E.) pulchella Hayami; Shikama and Suzuki, pl. 6, fig. 7.
Type. —Holotype (GK H6442) from the northeast of Raga, Tanohata, Iwate Pref.
Age and distribution. —Aptian(?)-Albian. Miyako group (Tanohata? and Aketo formations) in Tanohata area.
Eriphyla (Eriphyla) minima Hayami
1965b. Eriphyla (Eriphyla) minima Hayami, p. 99, pl. 9, figs. 13-16, pl. 14, figs. 12, 13.
Type. —Holotype (GK H6181) from Bisho, Toyo, Kumamoto Pref.
Age and distribution. —Upper Neocomian-Albian. Yatsushiro formation in Yatsushiro area, and Ishido formation in Sanchu area.
Eriphyla (Eriphyla) japonica Ichikawa and Maeda
1963. Eriphyla japonica Ichikawa and Maeda, p. 114, text-fig. 1, pl. 8, figs. 4-11.
Type. —Holotype (OCU MM312) from Yamamoto, Nandan (Awaji), Hyogo Pref.
Age and distribution. —Campanian-Maestrichtian. Izumi group (Shimonada sandstone and siltstone, Kitaama sandstone, Shichi shale, Minato shale and Azenotani shale) in Awaji island and Izumi mountains.
Eriphyla (Eriphyla) elegans Ichikawa and Maeda
1963. Eriphyla elegans Ichikawa and Maeda, p. 117, pl. 8, figs. 1-3.
Type. —Holotype (OCU MM304) from Yamamoto, Nandan (Awaji), Hyogo Pref.
Age and distribution. —Maestrichtian. Izumi group (Shimonada sandstone and siltstone) in Awaji island.
Remarks. —This is possibly conspecific with Eriphyla (Eriphyla) japonica.
Eriphyla (Eriphyla?) sp.
1928. Astarte (Dozyia) aff. striata Sowerby: Yabe and Nagao, p. 90, pl. 17, figs, 7, 8.
Age and distribution. —Cenomanian-Turonian. Middle Yezo group (Mikasa sandstone) in Manji area.
Subfamily OPINAE Chavan, 1952
Genus Opis Defrance, 1825
Subgenus Trigonopis Fischer, 1887
Opis (Trigonopis) torinosuensis Kimura
1956. Opis (Trigonopis) torinosuensis Kimura, p. 87, pl. 1, fig. 10.-1959e, Opis (Trigonopis') torinosuensis Kimura; Tamura, p. 113, pl. 12, figs. 11-13.-1960c. Opis (Trigonopis) torinosuensis Kimura: Tamura, p. 288, pl. 33, figs. 5-7.-1960d. Opis (Trigonopis) torino suensis Kimura: Tamura, p. 240.
Type. —Holotype (UMUT MM7170) from Yatsuji, Sakawa, Kochi Pref.
Age and distribution. —Upper Jurassic. Torinosu group in Sakawa, Yatsushiro, Sakamoto and Sakuradani areas, and Soma group (Nakanosawa formation) in Soma area.
Opis (Trigonopis) trigonalis Tamura
1959e. Opis (Trigonopis) trigonalis Tamura, p. 114, pl. 12, figs. 14-16.
Type. —Holotype (UMUT MM3099) from Sakamoto, Sakamoto, Kumamoto Pref.
Age and distribution. —Upper Jurassic. Torinosu group in Sakamoto area.
Subgenus Opis Defrance, 1825
Opis (Opis) haginoensis Amano
1957b. Opis (Trigonopis) haginoensis Amano, p. 97, pl. 2, figs. 25, 26.-1965b. Opis (Opis) haginoensis Amano: Hayami, p. 106.
Type. —Holotype (KML UMUT KML0045) from Hagino, Kahoku, Kochi Pref.
Age and distribution. —Aptian. Lower Monobegawa group (Hagino formation) in Mono begawa area.
Opis (Opis) nakanoi Hayami
1965b. Opis (Opis) nakanoi Hayami, p. 105, pl. 11, figs. 11, 12.
Type. —Holotype (GK H6451) from Hideshima (Sakiyama), Miyako, Iwate Pref.
Age and distribution. —Aptian. Miyako group (Tanohata formation) in Miyako area.
Opis (Opis) amakusensis Ueda
1963. Opis (Opis) amakusensis Ueda, p. 73, pl. 11, figs. 1-4, 15.
Type. —Holotype (GK H6098) from Furukojiro, Amakusa, Kumamoto Pref.
Age and distribution. —Santonian. Himenoura group (lower part) in Amakusa islands.
Opis (Opis) hokkaidoensis Ueda
1963. Opis (Opis) hokkaidoensis Ueda, p. 74, pl. 11, figs. 5-14, 16.
Type. —Holotype (GK H6101) from Ponporoto, Hamanaka, Kushiro Prov., Hokkaido.
Age and distribution. —Campanian or Maestrichtian. Nemuro group (Hamanaka forma- tion) in Akkeshi area.
Opis (Opis) sp.
1962. Opis neocomiensis d'Orbigny; Saito, p. 71, pl. 1, fig. 21.
Age and distribution. —Coniacian. Futaba group (Ashizawa formation) in Futaba area.
Genus Coelopis Fischer, 1887
Coelopis tanourensis (Tamura)
1959e. Opis (Coelopis) tanourensis Tamura, p. 114, pl. 12, figs. 5-7.
Type. —Holotype (UMUT MM3091) from Uminoura, Tanoura, Kumamoto Pref.
Age and distribution. —Upper Jurassic. Torinosu group in Tanoura and Sakamoto areas.
Family CRASSATELLIDAE Férussac, 1822
Subfamily CRASSATELLINAE Férussac, 1822
Genus Pachythaerus Conrad, 1869
Pachythaerus Icagaharensis (Yokoyama)
1890. Crassatella kagaharensis Yokoyarna, p. 200, pl. 25, figs. 14-16.-1963. Pachythaerus kagaharensis (Yokoyama): Matsumoto, Hayami and Asano, p. 32, pl. 51, figs. 14-16.- 1965b. Pachythaerus kagaharensis (Yokoyama): Hayami, p. 107, pl. 13, figs. 7-11, pl. 14, figs. 14, 15.
Type. —Syntype (depository unknown) from Kagahara, Nakazato, Gumma Pref.
Age and distribution. —Upper Neocomian-Aptian. Ishido formation in Sanchu area.
Pachythaerus nagaoi (Matsumoto)
1938. Crassatella (Pachythaerus) nagaoi Matsumoto, p. 16, text-figs. 10, 11.-1956. Crassatellites nagaoi Matsumoto: Amano, p. 74, pl. 1, figs. 16-20.
Type. —Syntype (UMUT MM7797-MM7801) from Kobunenosako and Enokuchi, Go- syonoura, Kumamoto Pref.
Age and distribution. —Albian (?)-Cenomanian. Gosyonoura group in Gosyonoura and Shishijima islands.
Genus Anthony a Gabb, 1864
Anthonya subcantiana Nagao [Pl. 6, Figs. 8, 9]
1934. Anthonya subcantiana Nagao, p. 222, pl. 25, fig. 11, pl. 30, figs. 6, 7.-1965b. Anthonya subcantiana Nagao: Hayami, p. 110, pl. 12, figs. 1-11, pl, 13, figs. 2-5.-compare 1965b. Anthonya sp. cf. A. subcantiana Nagao: Hayami, p. 113, pl. 13, fig. 6.-1969. Anthonya subcantiana Nagao: Hatai, Kotaka and Noda, p. 33, pl. 1, figs. 6, 7.-1972. Anthonya subcantiana Nagao: Tamura and Packard, p. 27, text-fig. 3.
Type. —Lectotype designated by Hayami (1965b, p. 110) (GMH no. 6768) from Haipe, Tanohata, Iwate Pref.
Age and distribution. —Aptian-Albian. Miyako group (Tanohata, Hiraiga and Aketo for- mations) in Tanohata and Omoto areas.
Anthonya apicalis apicalis Nagao
1938. Anthonya apicalis Nagao, p. 134, pl. 15, figs. 1-3.-1972. Anthonya apicalis Nagao: Tamura and Packard, p. 27.
Type. —Syntype (GMH no. 8203) from Poronai, Mikasa, Ishikari Prov., Hokkaido.
Age and distribution. —Cenomanian-Turonian. Middle Yezo group (Mikasa sandstone) in Ikushumbetsu area.
Anthonya apicalis shishijimensis Amano
1956. Anthonya apicalis shishijimensis Amano, p. 75, pl. 2, figs. 6-12.-1972. Anthonya apicalis shishijimensis Amano: Tamura and Packard, p. 27.
Type. —Syntype (KU not registered) from Miyanohara, Ochi, Kochi Pref., and Shishi- jima, Azuma, Kagoshima Pref.
Age and distribution. —Albian (?)-Cenomanian. Gosyonoura group in Shishijima island, and Miyanohara formation in Ochi area.
Anthonya japonica Matsumoto
1938. Anthonya japonica Matsumoto, p. 16, text-figs. 6, 7.-1938. Anthonya ensiformis Nagao, p. 135, pl. 15, figs. 4-8, p. 142 (postscript).-1972. Anthonya japonica Matsu moto: Tamura and Packard, p. 27, text-fig. 3, pl. 1, figs. 9-11.
Type. —Syntype (UMUT MM7788) from Arakuchi, Gosyonoura, Kumamoto Pref. Syntype of Anthonya ensiformis (GMH no. 8250) from Ikushumbetsu, Mikasa, Ishikari Prov., Hokkaido.
Age and distribution. —Cenomanian-Turonian. Gosyonoura group in Gosyonoura island, and Middle Yezo group (Mikasa sandstone) in Ikushumbetsu area.
Family CARDINIIDAE Zittel, 1881
Genus Cardinia Agassiz, 1841
Cardinia triadica Kobayashi and Ichikawa
1952a. Cardinia triadica Kobayashi and Ichikawa, p. 62, pl. 1, figs. 1-5.-1955. Cardinia triadica Kobayashi and Ichikawa: Nakazawa, p. 258, pl. 16, fig. 9.-1960c. Cardinia triadica Kobayashi and Ichikawa: Tokuyama, p. 211, pl. 13, figs. 17, 18.
Type. —Holotype (UMUT MM5380a) from the west of Heki, Yakuno, Kyoto Pref.
Age and distribution. —Carnian. Heki formation and Nabae group (N2 formation) in aizuru zone, and Mine group (Hirabara formation) in Mine area.
Cardinia misawensis Kobayashi and Ichikawa
1952b. Cardinia misawensis Kobayashi and Ichikawa, p. 265, pl. 10, figs. 7, 8.-1954d. Car- dinia misawensis Kobayashi and Ichikawa: Ichikawa, p. 58, pl. 4, figs. 7, 12-14.-compare 1955. Cardinia cf. misawensis Kobayashi and Ichikawa; Nakazawa, p. 259, pl. 16,
fig. 10.-1956. Cardinia misawensis Kobayashi and Ichikawa: Nakazawa, p. 231, pl. 1, fig. 1.
Type. —Holotype (UMUT MM5399d) from Misawa (east of Jito), Kawakami, Oka yama Pref.
Age and distribution. —Carnian-(?) Norian. Nariwa group (lower part) in Nariwa area, Kochigatani group (lower part) in Sakuradani area, and Nabae group (N3 formation) in Maizuru zone.
Cardinia toriyamai Hayami [Pl. 6, Figs. 10, 11]
1958e. Cardinia toriyamai Hayami, p. 121, pl. 9, figs. 1-11.-1959h. Cardinia toriyamai Hayami: Hayami, p. 71.
Type. —Holotype (UMUT MM2918) from Higashinagano, Toyoda, Yamaguchi Pref.
Age and distribution. —Sinemurian. Toyora group (Higashinagano formation) in Toyoda area.
Cardinia orientalis Hayami
1959h. Cardinia orientalis Hayami, p. 70, pl, 8, fig. 1.
Type. —Holotype (UMUT MM3439) from Higashinagano, Toyoda, Yamaguchi Pref.
Age and distribution. —Sinemurian. Toyora group (Higashinagano formation) in Toyoda area.
Genus Minepharus Tokuyama, 1958
Minepharus triadicus (Tokuyama) [Pl. 6, Figs. 12, 13]
1958. Palaeopharus (Minepharus) triadicus Tokuyama, p. 297, text-fig. 2, pl. 43, figs. 1-4, 6, 7 (non fig. 5)
Type. —Holotype (UMUT MM4470) from Hirabarazaka, Mine, Yamaguchi Pref.
Age and distribution. —Carnian. Mine group (Hirabara formation) in Mine area.
Superfamily CARDIACEA Lamarck, 1809
Family CARDIIDAE Lamarck, 1809
Subfamily PROTOCARDIINAE Keen, 1951
Genus Protocardia von Beyrich, 1845
Subgenus Protocardia von Beyrich, 1845
Protocardia (Protocardia) kurumensis Hayami
1958d. Protocardia kurumensis Hayami, p. 194, pl. 28, figs. 5-8.
Type. —Holotype (UMUT MM2803) from Shinatani, Omi (Agero), Niigata Pref.
Age and distribution. —Pliensbachian-Toarcian. Kuruma group (Shinatani formation) in Omi area.
Protocardia (Protocardia) onoi Hayami
1959h. Protocardia onoi Hayami, p. 77, pl. 8, figs. 16-18.
Type. —Holotype (UMUT MM3463) from Higashinagano, Toyoda, Yamaguchi Pref.
Age and distribution. —Sinemurian. Toyora group (Higashinagano formation) in Toyoda area.
Protocardia (Protocardia) inaii Hayami
1959e. Protocardia inaii Hayami, p. 140, pl, 14, figs. 11-13.
Type. —Holotype (UMUT MM3135) from Shizuhama, Shizukawa, Miyagi Pref.
Age and distribution. —Bajocian, Hashiura group (Aratozaki formation) in Shizukawa area.
Protocardia (Protocardia) tosensis Kimura
1956. Protocardia tosensis Kimura, p. 88, pl. 1, fig. 14.-1959c. Protocardia tosensis Kimura: Tamura, p. 28, pl. 5, figs. 33-37.-1960c. Protocardia tosensis Kimura: Tamura, p. 290, pl. 33, figs. 23, 24.-1960d. Protocardia tosensis Kimura: Tamura, p. 241.
Type. —Holotype (UMUT MM7159) from Yatsuji, Sakawa, Kochi Pref.
Age and distribution. —Upper Jurassic-Berriasian. Torinosu group in Sakawa, Sakamoto and Sakuradani areas, and Soma group (Nakanosawa and Koyamada formations) in Soma area.
Protocardia (Protocardia) morii Hayami
1960a. Protocardia morii Hayami, p. 18, pl. 3, figs. 11-15.
Type. —Holotype (UMUT MM3574) from Nagashioya, Kitakami (Hashiura), Miyagi Pref.
Age and distribution. —Tithonian or lower Neocomian. Jusanhama group in Hashiura area.
Protocardia (Protocardia) ibukii Nakazawa and Murata
1966. Protocardia ibukii Nakazawa and Murata, p. 314, pl. 4, fig. 7, pl. 5, figs. 1-4.
Type. —Holotype (IGPS no. 85765) from Kanayamazawa, Omine, Iwate Pref.
Age and distribution. —Neocomian. Kamihei group in Kamaishi area.
Protocardia (Protocardia) hiraigensis Hayami
1934. Cardium sp.: Nagao, p. 228, pl. 29, fig. 15 (? fig. 7).-1965b. Protocardia hiraigensis Hayami, p. 119, pl. 15, figs. 8-10.
Type. —Holotype (GK H6483) from Hiraiga, Tanohata, Iwate Pref.
Age and distribution. —Aptian. Miyako group (Hiraiga formation) in Tanohata and Miyako areas.
Genus Globocardium Hayami, 1965
Globocardium sphaeroideum (Forbes)
1934. Protocardia sp.: Nagao, p, 228, pl. 29, fig. 13.-1965b. Protocardia (Globocardium') sphaeroidea (Forbes): Hayami, p. 117, pl. 16, figs. 1-6.
Age and distribution. —Aptian. Miyako group (Tanohata and Hiraiga formations) in Tanohata area. This species is also known from the Aptian of western Europe, Crimea and Caucasus.
Remarks. —The concentric ribs on the disk seems to be more flat-topped in the Japanese specimens than in European ones, but the difference may be attributed to geographic variation.
Genus Nemocardium Meek, 1876
Subgenus Nemocardium Meek, 1876
Nemocardium (Nemocardium) yatsushiroense Hayami
1965b. Nemocardium yatsushiroense Hayami, p. 120, pl. 17, figs. 1-7.-compare 1965. Nemocardium sp. aft. N. yatsushiroense Hayami: Matsumoto, Hayami and Hashimoto,
p. 13, pl. 2, fig. 8.-1972. Nemocardium yatsushiroense Hayami: Shikama and Suzuki, pl. 6, fig. 9.
Type. —Holotype (GK H6486) from Nekodani, Yatsushiro, Kumamoto Pref.
Age and distribution. —Aptian-Albian. Yatsushiro formation in Yatsushiro area, and Choshi formation in Choshi area.
Nemocardium (Nemocardium) koshikljimense (Amano)
1957a. Protocardium koshikijimense Amano, p. 60, pl. 1, figs. 1-4.
Type. —Holotype (UMUT KML0061) from Ukimizu, Kashima (Shimokoshiki), Kago shima Pref.
Age and distribution. —Santonian (?)-Campanian. Himenoura group (upper part) in Shimokoshiki island.
Genus Integricardium Rollier, 1912
Subgenus Yokoyamaina Hayami, 1958
Integricardium (Yokoyamaina) hayamii (Keen and Casey) [Pl. 7, Figs. 1, 2]
1904. Cyrena elliptica Yokoyama, p. 11, pl. 1, fig. 4 (non Cyrena elliptica Dunker, 1843). -1958b. Yokoyamaina elliptica (Yokoyama): Hayami, p. 24, pl. 3, figs. 11-16.-compare 1958b. Yokoyamaina cf. elliptica (Yokoyama): Hayami, p. 25, pl. 3, fig. 17. -1969. Yokoyamaina hayamii Keen and Casey, in Cox et al., p. N668, fig, E140-12.-1972. Integricardium (Yokoyamaina) hayamii (Keen and Casey): Hayami, p. 204, pl. 38, figs. 10,11.
Type. —Holotype by monotypy (UMUT MM7173) from Niranohama, Utatsu, Miyagi Pref.
Age and distribution. —Hettangian. Shizukawa group (Niranohama formation) in Shizu kawa, Hashiura and Mizunuma areas.
 Explanation of Plate 7 Fig. 1. Integricardium (Yokoyamaina) hayamii (Keen and Casey): type-species of subgenus Yokoyamaina. Topotype (UMUT MM2864), left valve, ×1. Loc. Niranohama, Shizukawa (Hettangian, Shizukawa group). Fig. 2. The same species. Topotype (UMUT MM2867), rubber cast from right internal mould, ,×1. Loc. ditto. Fig. 3. Somarctica abukumensis (Tamura): type-species of genus Somarctica. Topotype (UMUT MM3320), rubber cast from left internal mould, ×1. Loc. Yamashita, Soma (Kimmeridgian, Soma group). Fig. 4. Sakawanella triadica Ichikawa; type-species of genus Sakawanella. Holotype (UMUT MM5169), rubber cast from left internal mould, × 2. Loc. Okunominetani, Sakawa (Carnian, Kochigatani group). Fig. 5, Ptychomya densicostata Nagao. Right valve of a bivalved specimen (GK H6513), Kinchakuiwa, Ofunato (upper Neocomian, Ofunato group). Fig. 6. Eomiodon lunulatus (Yokoyama). Topotype (UMUT MM2840), right valve, ×1.5. Loc. Niranohama, Shizukawa (Hettangian, Shizukawa group). Fig. 7. The same species. Topotype (UMUT MM2843), rubber cast from bivalved internal mould, × 1.5. Loc. ditto. Fig. 8. Protocyprina naumanni (Neumayr). Topotype (GK H6739), rubber cast from left internal mould, ×1. Loc. Yanagidani, Katsuuragawa (Neocomian, Tatsukawa formation). Fig. 9. The same species. Topotype (GK H6726), left valve of a bivalved specimen, ×1. Loc. ditto. Fig. 10. Costocyrena matsumotoi Hayami: type-species of genus Costocyrena. Holotype (GK H6502), rubber cast from right external mould, ×1.5. Loc. Miyaji, Yatsushiro (Albian, Yatsushiro formation). Fig. 11. The same species. Paratype (GK H6503), rubber cast from right internal mould, ×1.5. Loc. ditto. Fig. 12. Pseudasaphis japonica Matsumoto: type-species of genus Pseudasaphis. Syntype (UMUT MM7749), rubber cast from right external mould, ×1.5. Loc. Narukogawa, Gosyonoura (Cenomanian, Gosyonoura group). Fig. 13, Crenotrapezium kurumense kurumense Hayami: nominal subspecies of the type species of genus Crenotrapezium. Holotype (UMUT MM2823), left valve, ×1.5. Loc. Tsuchizawa, Otari (Pliensbachian ?, Kuruma group). Fig. 14. The same species. Topotype (UMUT MM2829), rubber cast from right internal mould, ×1.5. Loc. ditto. |
Subgenus uncertain
Intergricardium ? seikaianum (Amano, Ogata and Nire)
1958. Tendagurium seikaianum Amano, Ogata and Nire, p. 19, pl. 1, figs. 1-5.
Type. —Holotype (KU not registered) from Tateishi, Azuma (Shishijima), Kagoshima Pref.
Age and distribution. —Cenomanian. Gosyonoura group in Shishijima island.
Subfamily LAEVICARDIINAE Keen, 1936
Genus Laevicardium Swainson, 1840
Laevicardium ? ishidoense (Yabe and Nagao)
1926. Cardium ishidoense Yabe and Nagao, in Yabe, Nagao and Shimizu, p. 48, pl. 12, figs. 9, 16, 18.-1965b. Laevicardium (?) ishidoense (Yabe and Nagao); Hayami, p. 123, pl. 17, figs. 8-10.-compare 1972. Laevicardium (?) ishidoense Hayami: Shikama and Suzuki, pl. 6, fig. 10..
Type. —Lectotype designated by Hayami (1965b, p. 123) (IGPS no. 22533) from Ishido, Ohinata, Nagano Pref.
Age and distribution. —Upper Neocomian-Albian. Ishido formation in Sanchu area, and Yatsushiro formation in Sakamoto and Yatsushiro areas.
Laevicardium ? corpulentum (Amano)
1957b. Cardium. corpulentum Amano, p. 99, pl. 2, fig. 30.-1965b. Laevicardium (?) corpulentum (Amano): Hayami, p. 125, pl. 15, fig. 11.
Type. —Holotype (UMUT KML0004) from Hagino, Kahoku, Kochi Pref.
Age and distribution. —Aptian. Lower Monobegawa group (Hagino formation) in Mono begawa area.
Subfamily uncertain
Cardium ? naganoense Hayami
1959h. Cardium (s. 1.) naganoense Hayami, p. 77, pl. 8, figs. 14, 15.
Type. —Holotype (UMUT MM3461) from Higashinagano, Toyoda, Yamaguchi Pref.
Age and distribution. —Sinemurian. Toyora group (Higashinagano formation) in Toyoda area.
Superfamily MACTRACEA Lamarck, 1809
Family MACTRIDAE Lamarck, 1809
Genus Cymbophora Gabb, 1869
Cymbophora ezoensis (Yabe and Nagao)
1928. Spisula (Cymbophora) ezoensis Yabe and Nagao, p. 91, pl. 16, figs. 5-10.-1938. Spisula (Cymbophora) ezoensis var. hetonaiensis Nagao and Otatume, p. 47, pl. 2, fig. 3.
Type. —Syntype (IGPS no. 22614) from the upper course of the Ponnebetsu, Manji, Ishikari Prov., Hokkaido. Lectotype of Spisula (Cymbophora) ezoensis var. hetonaiensis, here designated, (Nagao and Otatume, 1938, pl. 2, fig. 3; GMH no. 5975) from Osachi nai, Hidaka Prov., Hokkaido.
Age and distribution. —Cenomanian-Campanian. Middle Yezo group (Mikasa sandstone) in Manji area. and Hakobuchi group (lower part) in Osachinai area.
Cymbophora ? tellinoides (Nagao and Otatume)
1938. Spisula (Cymbophora?) tellinoides Nagao and Otatume, p. 49, pl. 2, fig. 8.
Type. —Lectotype here designated (Nagao and Otatume, 1938, pl. 2, fig. 8; GMH no. 5945) from Sanusubezawa, Nakahobetsu, Hidaka Prov., Hokkaido.
Age and distribution. —Campanian. Hakobuchi group (lower part) in Hobetsu area.
Superfamily SOLENACEA Lamarck, 1809
Family CULTELLIDAE Davies, 1935
Genus Leptosolen Conrad, 1865
Leptosolen japonica Ichikawa and Maeda
1958b. Leptosolen japonicus Ichikawa and Maeda [sic], p. 106, pl. 6, figs. 3-6.
Type. —Holotype (OCU F1113) from Nakanotani, Sennan, Osaka Pref.
Age and distribution. —Campanian-Maestrichtian. Izumi group (Azenotani shale, Shichi shale, Yoroizaki sandstone and Kitaama sandstone) in Izumi mountains and Awaji island.
Family uncertain
Cultellus ? ellipsoidalis Kobayashi and Ichikawa
1950c. "Cultellus"? ellipsoidalis Kobayashi and Ichikawa, p. 237, pl. 4, fig. 9.
Type. —Holotype (UMUT MM5161) from Umenokidani, Sakawa, Kochi Pref.
Age and distribution. —Carnian. Kochigatani group (lower part) in Sakawa area.
Superfamily TELLINACEA de Blainville, 1814
Family ICANOTIIDAE Casey, 1916
Genus Scittila Casey, 1961
Scittila japonica Hayami
1957b. aff. Tellina carteroni d'Orbigny: Amano, p. 102, text-fig. 3, pl. 1, fig. 26.-1965b. Scittila japonica Hayami, p. 126, pl. 18, fig. 1.
Type. —Holotype (GK H6533) from Hiroyasu, Katsuura, Tokushima Pref.
Age and distribution. —Upper Neocomian-Aptian. Hanoura formation in Katsuuragawa area, and Lower Monobegawa group (Hagino formation) in Monobegawa area.
Family TANCREDIIDAE Meek, 1864
Genus Sakawanella Ichikawa, 1950
Sakawanella triadica Ichikawa [Pl. 7, Fig. 4]
1950. Sakawanella triadica Ichikawa, p. 246, pl. 5, figs. 1-7.
Type. —Holotype (UMUT MM5169) from Okunominetani, Sakawa, Kochi Pref.
Age and distribution. —Carnian. Kochigatani group (lower part) in Sakawa area.
Genus Tancredia Lycette, 1850
Tancredia rostrata Tamura
1959e. Tancredia rostrata Tamura, p. 117, text-fig. 3, pl. 12, fig. 23.
Type. —Holotype (UMUT MM3110) from Tsurubami, Sakamoto, Kumamoto Pref.
Age and distribution. —Upper Jurassic. Torinosu group in Sakamoto and Tanoura areas.
Genus Meekia Gabb, 1864
Meekia hokkaidoana Tamura
1928. Meekia cf. sella Gabb: Yabe and Nagao, p. 86, pl. 17, figs. 12, 13, 19.-1973. Meekia hokkaidoana Tamura, p. 102, pl. 1, figs. 1-10.
Type. —Holotype (GK H5675) from Yonnosawa (a tributary of the Ponhorokabetsu), Yubari, Ishikari Prov., Hokkaido.
Age and distribution. —(?) Cenomanian-Turonian. Middle Yezo group (Mikasa sand stone) in Yubari and Manji areas.
Superfamily ARCTICACEA Newton, 1891
Family ARCTICIDAE Newton, 1891
Genus Isocyprina Roeder, 1882
Isocyprina shizuhamensis Hayami
1959e. Isocyprina shizuhamensis Hayami, p. 67, pl. 5, figs. 29-31.
Type. —Holotype (UMUT MM2970) from Akaiwazaki (Hosoura), Shizukawa, Miyagi Pref.
Age and distribution. —Bajocian. Hashiura group (Aratozaki formation) in Shizukawa area.
Isocyprina aliquantula (Amano)
1957b. Cyprina aliquantula Amano, p. 95, pl. 2, figs. 13-18.-1965b. Isocyprina aliquantula (Amano): Hayami, p. 137, pl. 19, figs. 8, 9,-1969. Isocyprina aliquantula (Amano): Hatai, Kotaka and Noda, p. 34.
Type. —Holotype (UMUT KML0026) from Hagino, Kahoku, Kochi Pref.
Age and distribution. —Aptian. Lower Monobegawa group (Hagino formation) in Mono- begawa area, and Miyako group (Tanohata formation) in Tanohata area.
Genus Pronoella Fischer, 1887
Pronoella sugayensis Hayami
1961b. Pronoella sugayensis Hayami, p. 121, pl. 16, figs. 14-16.
Type. —Holotype (UMUT MM3692) from Sugaya, Soma, Fukushima Pref.
Age and distribution. —Bathonian (or thereabout). Soma group (Yamagami formation) in Soma area.
Genus Somarctica Tamura, 1960
Somarctica abukumensis (Tamura) [Pl. 7, Fig. 3]
1960c. Arctica (Somarctica) abunkumensis Tamura, p. 290, pl. 33, figs. 25-28.
Type. —Holotype (UMUT MM3319) from Yamashita, Kashima, Fukushima Pref.
Age and distribution. —Kimmeridgian. Soma group (Nakanosawa formation) in Soma area.
Genus Veniella Stoliczka, 1871
Veniella ? japonica Nagao
1930. Veniella (?) japonica Nagao, p. 21, pl. 2, figs. 1, 3.-compare 1965b. Veniella sp. aff. V. japonica Nagao: Hayami, p. 139, pl. 19, fig. 10.-compare 1969. Veniella sp. cf. japonica Nagao: Hatai, Kotaka and Noda, p. 34.
Type. —Syntype (GMH? not registered) from Gosyonoura, Kumamoto Pref.
Age and distribution. —Albian (?)-Cenomanian. Gosyonoura group in Gosyonoura island.
Genus Izumia Ichikawa, 1963
Izumia trapezoidalis Ichikawa and Maeda [Pl. 10, Figs. 4-6]
1963. Izumia trapezoidalis Ichikawa and Maeda, p. 124, text-fig. 3, pl. 10, figs. 1-10.
Type. —Holotype (OCU MM262) from Magatayama, Sumoto (Awaji), Hyogo Pref.
Age and distribution. —Campanian. Izumi group (Yoroizaki sandstone and Azenotani shale) in Awaji island and Izumi mountains.
Genus Agapella Vokes, 1946
Agapella? koikorobensis Hayami
1965b. Agapella (?) koikorobensis Hayami, p. 144, pl. 20, fig. 14.
Type. —Holotype (GK H6495) from Koikorobe, Tanohata, Iwate Pref.
Age and distribution. —Aptian. Miyako group (Tanohata formation) in Tanohata area.
Family PTYCHOMYIDAE Keen, 1969
Genus Ptychomya Agassiz, 1842
Ptychomya densicostata Nagao [Pl. 7, Fig. 5]
1934. Ptychomya densicostata Nagao, p. 224, pl. 28, fig. 4.-1965b. Ptychomya densicostata Nagao: Hayami, p. 141, pl. 21, figs. 1-4.
Type. —Lectotype designated by Hayami (1965b, p. 141) (GMH no. 6611) from Raga, Tanohata, Iwate Pref.
Age and distribution. —Upper Neocomian-Albian. Miyako group (Hiraiga formation) in Tanohata area, Arita formation in Yuasa area, Ofunato group (Nagaiso member) in Ofunato area, Ishido formation in Sanchu area, and Yatsushiro formation in Yatsushiro and Sakamoto areas.
Family NEOMIODONTIDAE Casey, 1955
Subfamily EOMIODONTINAE Hayami, 1965
Genus Eomiodon Cox, 1935
Eomiodon lunulatus (Yokoyama) [Pl. 7, Figs. 6, 7]
1904. Cyrena lunulata Yokoyama, p. 10, p1. 2, fig. 9.-1958b. Eomiodon lunulatus (Yokoyama): Hayami, p. 17, pl. 2, figs. 1-12.-1959b. Eomiodon lunulatus (Yokoyama): Hayami, p. 78, text-figs.
Type. —Holotype by monotypy (UMUT MM7178) from Niranohama, Utatsu, Miyagi Pref.
Age and distribution. —Hettangian. Shizukawa group (Niranohama formation) in Shizukawa, Hashiura and Mizunuma areas.
Eomiodon vulgaris Hayami
1958b. Eomiodon vulgaris Hayami, p. 19, pl. 2, figs. 15-21, pl. 3, figs. 1-3.
Type. —Holotype (UMUT MM2844) from the lower course of the Daira, Asahi, Toyama Pref.
Age and distribution. —Lower Jurassic (especially Pliensbachian-Toarcian). Kuruma group (Kitamatadani, Negoya, Shinatani, Tsuchizawa formations) in Asahi, Omi, Kotaki, and Otari areas, Shizukawa group (Niranohama formation) in Shizukawa area, Iwamuro formation in Katashina area, and Yamaoku formation in Osakabe area.
Eomiodon ? giganteus Hayami
1958b. Eomiodon (?) giganteus Hayami, p. 21, pl. 3, figs. 7-10.
Type. —Holotype (UMUT MM2857) from Niranohama, Utatsu, Miyagi Pref.
Age and distribution. —Hettangian. Shizukawa group (Niranohama formation) in Shizukawa area.
Eomiodon sakawanus (Kobayashi and Suzuki)
1939. Astarte sakawana Kobayashi and Suzuki, p. 219, pl. 13, fig. 11 (non pl. 13, figs. 12, 13).-1973. Eomiodon sakawanus (Kobayashi and Suzuki): Ohta, p. 250, pl. 1, figs. 1-11.
Type. —Lectotype designated by Ohta (1973) (Kobayashi and Suzuki, 1939, pl. 13, fig. 11; UMUT MM7910) from Kaisekiyama, Sakawa, Kochi Pref. Ohta (1973, p. 251) regarded this specimen as holotype, but Kobayashi and Suzuki (1939) did not designate any type in the original description.
Age and distribution. —Neocomian. Ryoseki formation in Sakawa area, Kawaguchi formation in Sakamoto area, and Yuasa formation in Yuasa area.
Eomiodon nipponicus Ohta
1939. Astarte sakawana Kobayashi and Suzuki, p. 219 (pars), pl. 13, figs. 12, 13 (non pl.13, fig. 11).-1973. Eomiodon nipponicus Ohta, p. 252, pl. 1, figs. 15-22, pl. 2, figs. 14-19.
Type. —Holotype (GF Y230) from Yoshimo, Shimonoseki, Yamaguchi Pref.
Age and distribution. —Neocomian. Toyonishi group (Yoshimo formation) in Shimonoseki area.
Eomiodon hayamii Ohta
1973. Eomiodon hayamii Ohta, p. 254, pl. 1, figs. 12-14.
Type. —Holotype (GF Y239) from Yoshimo, Shimonoseki, Yamaguchi Pref.
Age and distribution. —Neocomian. Toyonishi group (Yoshimo formation) in Shimonoseki area.
Eomiodon matsumotoi Ohta
1973. Eomiodon matsumotoi Ohta, p. 255, pl. 2, figs. 1-13.
Type. —Holotype (GF K102) from Sakayoriue, Kawamata, Kumamoto Pref.
Age and distribution. —Neocomian. Kawaguchi formation in Kawamata area, and Ryoseki formation in Kochi and Sakawa areas.
Genus Protocyprina Vokes, 1946
Protocyprina naumanni (Neumayr) [Pl. 7, Figs. 8, 9]
1890. Cyrena naumanni Neumayr, in Naumann and Neumayr, p. 33, pl. 4, figs. 3, 4.-1890. Cyrena lithocardium Neumayr, in Naumann and Neumayr, p. 34, pl. 4, fig. 1.-1890. Cyrena gravida Nuemayr, in Naumann and Neumayr, p. 34, pl. 4, fig. 2.-1926. Cyrena naumanni Neumayr: Yabe, Nagao and Shimizu, p. 49, pl. 12, figs, 6, 17, 18, pl. 14, fig. 25, pl. 14, figs. 23, 24, 26, 29-31.-1927. Cyrena naumanni Neumayr: Yabe, pl. 3, fig. 5. -1943. Polymesoda (Gleloina) naumanni (Neumayr): Suzuki and Oyama, p. 139, 146.-1963. "Cyrena" naumanni Neumayr: Hayami, Matsumoto and Asano, p. 34, pl. 52, figs. 1-4.-1965. Protocyprina naumanni (Neumayr): Hayami and Nakai, p. 117, text-fig. 3, pl. 13, figs. 1-3, pl. 14, figs. 1-8.
Type. —Syntype (Naturhistorischen Museum, Wien) from Yanagidani, Kamikatsu, Tokushima Pref. Holotype by monotypy of Cyrena lithocardium and holotype by monotypy of Cyrena gravida from the same locality.
Age and distribution. —Neocomian. Tatsukawa formation in Katsuuragawa area, Shiroi formation in Sanchu area, Yuasa formation in Yuasa area, and Tetori group (Kuwajima formation) in Tetori area.
Genus Costocyrena Hayami, 1965
Costocyrena otsukai (Yabe and Nagao)
1926. Cyrena otsukai Yabe and Nagao, in Yabe, Nagao and Shimizu, p. 50, pl. 2, figs 20-24.-1973. Costocyrena otsukai (Yabe and Nagao): Ohta, p. 256, pl. 3, figs. 1-11.-1973. Costocyrena crenatus Ohta [sic], p. 258, pl. 3, fig. 12.
Type. —Syntype (IGPS no. 22453, 22476) from Bomeki, Ohinata, Nagano Pref. Holotype of Costocyrena crenata (GF S920) from Shiroi, Ueno, Gumma Pref.
Age and distribution. —Neocomian. Shiroi formation in Sanchu area, Yuasa formation in Yuasa area, and Ryoseki formation in Kochi area.
Costocyrena ominensis (Nakazawa and Murata)
1966. "Eomiodon" ominensis Nakazawa and Murata, p. 315, pl. 5, figs, 5-12, 15.
Type. —Holotype (UK JM11159) from Obirakizawa, Omine, Iwate Pref.
Age and distribution. —Neocomian. Kamihei group in Kamaishi area.
Costocyrena radiatostriata (Yabe and Nagao)
1926. Cyrena radiatostriata Yabe and Nagao, in Yabe, Nagao and Shimizu, p. 51, pl. 12, figs. 29-35, pl. 13, fig. 45.-1965b. Costocyrena radiatostriata (Yabe and Nagao): Hayami, p. 135, pl. 19, figs. 1-7.-compare 1965b. Costocyrena sp. aff. C. radiatostriata (Yabe and Nagao): Hayami, p. 137, pl. 18, figs. 13-15.
Type. —Lectotype, designated by Hayami (1965b, p. 135) (IGPS no. 35523) from Hachimanzawa (Kagahara), Nakazato, Gumma Pref.
Age and distribution. —Aptian-Albian. Sebayashi formation in Sanchu area.
Costocyrena matsumotoi Hayami [Pl. 7, Figs. 10, 11]
1965b. Costocyrena matsumotoi Hayami, p. 133, pl. 18, figs. 2-12.-compare 1972. Costocyrena matsumotoi Hayami: Shikama and Suzuki, pl. 6, fig. 11.
Type. —Holotype (GK H6502) from Miyaji, Yatsushiro, Kumamoto Pref.
Age and distribution. —Albian. Yatsushiro formation in Yatsushiro area.
Costocyrena peikangensis Hayami
1965. Costocyrena peikangensis Hayami, in Matsumoto, Hayami and Hashimoto, p. 12, pl. 2, figs. 5, 6.
Type. —Holotype (CPC no. 17) from a core of Pk-2 well at the depth, of 1977.65 m, Peikang, west Formosa.
Age and distribution. —Lower Cretaceous (not younger than Aptian). Buried Cretaceous formation in west Formosa.
Genus Pseudasaphis Matsumoto, 1938
Pseudasaphis japonica Matsumoto [Pl. 7, Fig. 12]
1938. Pseudasaphis japonicus Matsumoto [sic], p. 18, pl. 2, figs. 4, 5.
Type. —Syntype (UMUT MM7749, 7750, 7809-7813) from Narukogawa, Gosyonoura, Kumamoto Pref.
Age and distribution. —Cenomanian. Gosyonoura group in Gosyonoura island, and Middle Yezo group (Mikasa sandstone) in Ikushumbetsu area.
Subfamily NEOMIODONTINAE Casey, 1955
Genus Crenotrapezium Hayami, 1958
Crenotrapezium kurumense kurumense Hayami [Pl. 7, Figs. 13, 14]
1958b. Crenotrapezium kurumense Hayami, p. 14, pl. 2, figs. 22-28.-1958b. Crenotrapezium kurigata Hayami, p. 16, pl. 2, figs. 29, 30.
Type. —Holotype (UMUT MM2823) from Tsuchizawa, Otari, Nagano Pref. Holotype of Crenotrapezium 'kurigata (UMUT MM2832) from the same locality.
Age and distribution. —Lower Jurassic (especially Pliensbachian-Toarcian). Kuruma group (Tsuchizawa, Kitamatadani, Negoya and Shinatani formations) in Otari, Kotaki, Omi and Asahi areas.
Crenotrapezium kurumense grossum. Hayami
1961a. Crenotrapezium kurumense grossum Hayami, p. 115, pl. 16, fig. 4.
Type. —Holotype (UMUT MM3678) from Ochiai, Oosa. Okavama Pref.
Age and distribution. —Toarcian. Yamaoku formation in Osakabe area.
Crenotrapezium kitakamiense Hayami
1960a. Crenotrapezium kitakamiense Hayami, p. 17, text-fig. 2, pl. 3, figs. 8-10.
Type. —Holotype (UMUT MM3570) from Nagashioya, Kitakami (Hashiura), Miyagi Pref.
Age and distribution. —Tithonian or lower Neocomian. Jusanhama group in Hashiura area.
Crenotrapezium ? kobayashii (Maeda)
1959. Polymesoda (Isodomella) kobayashii Maeda, p. 158 pl. 17, figs. 1-11.
Type. —Holotype (CU not registered) from Kashiwate river (a tributary of the Takahara), Kamitakara, Gifu Pref.
Age and distribution. —Lower Cretaceous (precisely unknown). Tetori group (Tochio formation) in Kamitakara area.
Genus Neomiodon Fischer, 1887
Neomiodon? amagashiraensis (Kobayashi and Suzuki)
1937. Corbicula amagashiraensis Kobayashi and Suzuki, p. 45, pl. 5, figs. 8-12.-1973. Neomiodon? amagashiraensis (Kobayashi and Suzuki): Ohta, p. 264, pl. 3, figs. 13-17.
Type. —Holotype (UMUT MM7007) from Amagashiradani, Izumi, Fukui Pref.
Age and distribution. —Upper Jurassic (precisely unknown). Tetori group (Shimoanama formation) in Izumi area.
Genus Myrene Casey, 1955
Subgenus Mesocorbicula Suzuki and Oyama, 1943
Myrene (Mesocorbicula) tetoriensis (Kobayashi and Suzuki) [Pl. 8, Fig. 1]
1937. Corbicula tetoriensis Kobayashi and Suzuki, p. 46, text-fig. 2, pl. 5, figs. 8-12.-1943. Corbicula (Mesocorbicula) tetoriensis Kobayashi and Suzuki: Suzuki and Oyama, p. 143.-1973. Myrene (Mesocorbicula) tetoriensis (Kobayashi and Suzuki); Ohta, p. 260, pl. 3, fig. 18, pl. 4, figs.1-12.
Type. —Holotype (UMUT MM7008) from Izuki, Izumi, Fukui Pref.
Age and distribution. —Upper Jurassic. Tetori group (Izuki and Ushimaru formations) in Izumi and Makito areas.
 Explanation of Plate 8 Fig. 1. Myrene (Mesocorbicula) tetoriensis (Kobayashi and Suzuki): type-species of subgenus Mesocorbicula. Paratype (UMUT MM7011), rubber cast from bivalved internal mould, ×1. Loc. Izuki, Izumi (UP. Jurassic or Neocomian, Tetori group). Fig. 2. Tetoria (Tetoria) yokoyamai (Kobayashi and Suzuki): type-species of geaus Tetoria. Holotype (UMUT MM7004), right valve, ×1. Loc. Kurouchi, Furukawa (Up. Jurassic, Tetori group). Fig. 3. Tetoria (Paracorbicula) yoshimoensis Ota. Bivalved internal mould (UMUT MM7992-1), ×1. Loc. Yoshimo, Shimonoseki (Neocomian, Yoshimo formation). Fig. 4. Isodomella shiroiensis (Yabe and Nagao): type-species of genus Isodomella. Rubber cast from left internal mould (UMUT MM7885), ×1.5. Loc. Yoshimo, Shimonoseki (Neocomoian, Yoshimo formation). Fig. 5. Nagaoella. corrugata (Nagao): type-species of genus Nagaoella. Topotype (GK H6708), left valve, ×1. Loc. Hiraiga, Tanohata (Aptian, Miyako group). Tig. 6. The same species. Topotype (GK H6518), right valve, ×1. Loc. ditto. Fig. 7. Neoburmesia iwakiensis Yabe and Sato: type-species of genus Neoburmesia. Topotype (UMUT MM3283), Miyama, Soma (Kimmeridgian, Soma group). Fig. 8. Tetorimya carinata Hayami: type-species of genus Tetorimya. Holotype (UMUT MM3181), right valve of a bivalved specimen, ×1. Loc. Nonomata, Makito (Callovian, Tetori group). Fig. 9. Pholadomya (Bucardiomya) miyamotoi Nagao. Topotype (GK H6547), right valve, ×1.5. Loc. Hiraiga, Tanohata (Aptian, Miyako group). Fig. 10. Goniomya (Goniomya) nonvscripta Tamura. Holotype (UMUT MM3292), left valve, ×1. Loc, Tatenosawa, Soma (Kimmeridgian, Soma group). Fig. 11. Goniomya (Goniomya) subarchiaci Nagao. Left valve (GK H6559), ×1.5 Loc. Hiraiga, Tanohata (Aptian, Miyako group). Fig. 12. Cercomya (Cercomya) gurgitis (Pictet and Campiche). Left valve (GK H6574), ×1. Loc. Hiraiga, Tanohata (Aptian, Miyako group). |
Subfamily uncertain
Genus Isodomella Kobayashi and Suzuki, 1939
Isodomella shiroiensis (Yabe and Nagao)
1926. Cyrena shiroiensis Yabe and Nagao, in Yabe, Nagao and Shimizu, p. 52, pl, 14, figs. 4-6, 19, 20, 22, 25.-1926. Cyrena shiroiensis var. alata Yabe and Nagao, in Yabe, Nagao and Shimizu, p. 53, pl. 13, fig. 26, pl. 14, fig. 15, 28.-1939. Polymesoda shiroiensis (Yabe and Nagao): Kobayashi and Suzuki, p. 219, pl, 14, figs. 1-9.-1943. Polymesoda (Geloina) shiroiensis (Yabe and Nagao): Suzuki and Oyama, p. 139, 146.-1955. Polymesoda (Isodomella) naumanni (Neumayr): Yamagiwa, p. 47, pl. 1, figs. 5-15.
Type. —Syntype (IGPS no. 22451) from Bomeki, Ohinata, Nagano Pref. Syntype of Cyrena shiroiensis var. alata (IGPS, not registered) from Shiroi, Ohinata, Nagano Pref.
Age and distribution. —Neocomian. Shiroi formation in Sanchu area, Toyonishi group
(Yoshimo formation) in Shimonoseki area, and Matsuo formation in Shima area.
Superfamily CORBICULACEA Gray, 1847
Family CORBICULIDAE Gray, 1847
Genus Eocallista Douvillé, 1921
Eocallista ? regularis Tamura
1959e. "Eocallista" regularis Tamura, p. 116, text-fig. 1, pl. 12, figs. 8-10.
Type. —Holotype (UMUT MM3107) from Matsuzaki, Sakamoto, Kumamoto Pref.
Age and distribution. —Upper Jurassic. Torinosu group in Sakamoto area.
Genus Filosina Casey, 1955
Filosina jusanhamensis Hayami
1960a. Filosina jusanhamensis Hayami, p. 15, text-fig. 1, pl. 3, figs. 1-7.-compare 1966. Filosina sp. aff. F. jusanhamensis Hayami: Nakazawa and Murata, p. 317, pl. 5, figs. 13, 14.
Type. —Holotype (UMUT MM3562) from Nagashioya, Kitakami (Hashiura), Miyagi Pref.
Age and distribution. —Tithonian or lower Neocomian. Jusanhama group in Hashiura area.
Genus Tetoria Kobayashi and Suzuki, 1937
Subgenus Tetoria Kobayashi and Suzuki, 1937
Tetoria (Tetoria) yokoyamai (Kobayashi and Suzuki) [Pl. 8, Fig. 2]
1937. Batissa yokoyamai Kobayashi and Suzuki, p. 44, pl. 4, figs. 3-6.-1943. Corbicula (Tetoria) yokoyamai (Kobayashi and Suzuki): Suzuki and Oyama, p. 141, 147.
Type. —Holotype (UMUT MM7004) from Kurouchi, Furukawa, Gifu Pref.
Age and distribution. —Upper Jurassic. Tetori group (Kurouchi, Izuki and Ushimaru formations) in Furukawa, Izumi and Makito areas.
Tetoria (Tetoria) antiqua (Kobayashi and Suzuki)
1937. Batissa antiqua Kobayashi and Suzuki, p. 42, pl. 4, figs. 1, 2.-1943. Corbicula (Tetoria) antiqua (Kobayashi and Suzuki): Suzuki and Oyama, p. 141, 147.
Type. —Holotype (UMUT MM7002) from Izuki, Izumi, Fukui Pref.
Age and distribution. —Upper Jurassic. Tetori group (Izuki and Kurouchi formation) in Izumi and Furukawa areas.
Subgenus Paracorbicula Kobayashi and Suzuki, 1939
Tetoria (Paracorbicula) sanchuensis (Yabe and Nagao) [Pl. 8, Fig. 3]
1926. Corbicula (Veloritina?) sanchuensis Yabe and Nagao, in Yabe, Nagao and Shimizu, p. 53, pl. 12, fig. 8, pl. 13, figs. 8-10, 17.-1943. Polymesoda (Paracorbicula) sanchuensis (Yabe and Nagao): Suzuki and Oyama, p. 141, 146.-compare 1955. Polymesoda (Paracorbicula) cf. sanchuensis (Yabe and Nagao): Yamagiwa, p. 49, pl. 1, figs. 3, 4.-1959. Polymesoda (Paracorbicula) sanchuensis (Yabe and Nagao): Maeda, p. 159, pl. 17, figs. 12-16.-1965. Tetoria (Paracorbicula) sanchuensis (Yabe and Nagao): Ota, pl. 13, fig. 14.
Type. —Syntype (IGPS no. 22449, 22467) from Bomeki, Ohinata, Nagato Pref.
Age and distribution. —Upper Jurassic-Neocomian. Shiroi formation in Sanchu area, Tetori group (Tochio formation) in Kamitakara area, and Ryoseki formation in Kochi area.
Tetoria (Paracorbicula) yoshimoensis Ota
1939. Corbicula sanchuensis Yabe and Nagao: Kobayashi and Suzuki, p. 221, pl. 14, figs. 10-15.-1965. Tetoria (Paracorbicula) yoshimoensis Ota, p. 168, pl. 12, figs. 1-22, pl. 13, figs. 1-13.
Type. —Holotype (GF Y64325) from Yoshimo, Shimonoseki, Yamaguchi Pref.
Age and distribution. —Upper Jurassic-Neocomian. Toyonishi group (Yoshimo formation) in Shimonoseki area, Tetori group (Izuki and Kurouchi formations) in Izuki and Furukawa areas, and Kawaguchi formation in Tanoura area.
Family PISIDIIDAE Gray, 1857
Genus Sphaerium Scopoli, 1777
Sphaerium anderssoni anderssoni (Grabau)
1943. Sphaerium anderssoni (Grabau): Suzuki, p. 62, pl. 4, figs. 1-4,-1960. Sphaerium anderssoni anderssoni (Grabau): Hase, p. 319, pl. 37, figs. 12-15, pl. 38, figs. 2-24.
Age and distribution. —Lower Cretaceous (precisely unknown). Kwanmon group (Sengoku, Nyoraida, Wakamiya, Shiohama and Inakura formations) in various areas of north Kyushu and west Chugoku, and Naktong group in Keisyo-do, south Korea. This subspecies was originally described from north China.
Sphaerium anderssoni jeholense (Grabau)
1943. Sphaerium anderssoni jeholense (Grabau): Suzuki, p. 63, pl. 4, figs. 5-13,-1960. Sphaerium anderssoni jeholense (Grabau): Hase, p. 321, pl. 38, figs. 25-30.
Age and distribution. —Lower Cretaceous (precisely unknown). Kwanmon group (Wakamiya and Inakura formations) in Nogata, Takibe and Asa areas, and Naktong group in Keisyo-do, south Korea. This subspecies was originally described from north China.
Superfamily VENERACEA Rafinesque, 1815
Family VENERIDAE Rafinesque, 1815
Subfamily PITARINAE Stewart, 1930
Genus Aphrodina Conrad, 1869
Aphrodina pseudoplana (Yabe and Nagao)
1924. Callista cf. plana (Sowerby): Yehara, p. 38, pl. 2, fig. 6, pl. 3, figs. 3-6.-1925. Callista pseudoplana Yabe and Nagao, p. 120, pl. 28, figs. 9, 10, pl. 29, figs. 2, 4.-1925. Callista pseudoplana var. elongata Yabe and Nagao, p. 120, pl. 29, fig. 5.-1925. Callista pseudoplana var. alata Yabe and Nagao, p. 120, pl. 29, figs. 1, 6.-1925. Callista pseudoplana var. rotundata Yabe and Nagao, p. 120, pl. 29, fig. 3.-1927. Callista pseudoplana Yabe and Nagao: Yabe, pl. 5, fig. 6.-compare 1938. Aphrodina cf. pseudoplana (Yabe and Nagao): Nagao and Otatume, p. 46, pl. 3, figs. 1-3, 6-10.-compare 1963. Aphrodina sp. cf. A. (Larma) pseudoplana (Yabe and Nagao): Ichikawa and Maeda, p. 129, pl. 11, fig. 8.-compare 1964. Aphrodina (Sechurina) cf. pseudoplana (Yabe and Nagao): Katto and Hattori, 1964, p. 8, pl. 1, figs. 7-9.
Type. —Lectotype designated by Ichikawa and Maeda (1963, p. 130) (IGPS no. 8553) from the upper course of Ponnebetsu (a tributary of the Horomui), Manji, Ishikari Prov., Hokkaido. Syntype of Callista pseudoplana var. elongata (IGPS not registered) from Ponhorokabetsu, Yubari, Ishikari Prov.; syntype of Callista pseudoplana var. alata from Ekimomaanoro, Yubari, Ishikari Prov.; and syntype of Callista pseudoplana var. rotundata
from Wenshirianbibai, Bibai, Ishikari Prov. Yabe and Nagao (1925) used the term "holotype" for this species and these three varieties, but there is no indication of specimen in the explanation of plates.
Age and distribution. —Cenomanian-Turonian. Middle Yezo group (Mikasa sandstone) in Manji, Yubari, Bibai and Ikushumbetsu areas, and Cape Khoi beds in Alexandrovsk area.
Aphrodina izumensis Ichikawa and Maeda
1963. Aphrodina izumensis Ichikawa and Maeda, p. 128, pl. 11, fig. 7.
Type. —Holotype (OCU MM327) from Yamamoto, Nandan (Awaji), Hyogo Pref.
Age and distribution. —Maestrichtian. Izumi group (Shimonada siltstone) in Awaji island.
Aphrodina japonica (Amano)
1957a. Callistina (Larma) japonica Amano, p. 59, pl. 1, figs. 14-18.
Type. —Holotype (UMUT KML 0068) from Imuta, Kashima (Shimokoshiki), Kagoshima Pref.
Age and distribution. —Santonian-Campanian. Himenoura group in Koshikijima islands.
Aphrodina hataii Katto and Hattori
1964. Aphrodina (Aphrodina) hataii Katto and Hattori, p. 8, pl. 1, figs. 1-6.
Type. —Holotype (Kochi Univ. not registered) from Sada, Nakamura, Kochi Pref.
Age and distribution. —Upper Cretaceous (precisely unknown). Shimantogawa group (Nakamura formation) in Nakamura area.
Genus Pseudamiantis Kuroda, 1933
Pseudamiantis ? crenulata (Matsumoto)
1938, "Callista" (Pseudamiantis) crenulatus Matsumoto [sic], p. 19, text-figs. 12, 13, pl. 1, fig. 5.-1956. Pseudamiantis crenulatus (Matsumoto) [sic]: Aroano, p. 78, pl. 1, fig. 26, pl. 2, figs. 13-19.-1963. "Callista" (Pseudamiantis) crenulatus Matsumoto [sic]: Iwasaki, p. 94, pl. 15, figs. 4-7.
Type. —Syntype (UMUT MM7751, 7752, 7825-7830) from Kobunenosako and Umedo, Gosyonoura, Kumamoto Pref.
Age and distribution. —Cenomanian. Gosyonoura group in Gosyonoura and Shishijima islands.
Genus Tenea Conrad, 1870
Tenea japonica Ichikawa and Maeda
1963. Tenea japonica Ichikawa and Maeda, p. 131, pl. 11, figs. 1-4.
Type. —Holotype (OCU MM331) from Hansanji, Seidan (Awaji), Hyogo Pref.
Age and distribution. —Campanian. Izumi group (Shichi shale and Azenotani shale) in Awaji island and Izumi mountains.
Genus Trigonocallista Rennie, 1930
Trigonocallista ornata Ichikawa and Maeda
1963, Trigonocallista ornata Ichikawa and Maeda, p. 126, pl. 11, figs. 5, 6.
Type. —Holotype (OCU MM328) from Tsubasayama, Hiketa, Tokushima Pref.
Age and distribution. —Campanian. Izumi group (Tsubasayama sandstone) in Hiketa area.
Genus Nagaoella Hayami, 1965
Nagaoella corrugata (Nagao) [Pl. 8, Figs. 5, 6]
1934. Dosiniopsis corrugata Nagao, p. 229, pl. 24, figs. 2-6, 9.-1965b. Nagaoella corrugata (Nagao): Hayami, p. 148, pl. 19, figs. 12-15, pl. 20, figs. 1-12.-compare 1965b. Nagaoella sp. aff. N. corrugata (Nagao): Hayami, p. 150, pl. 20, fig. 13.
Type. —Holotype (GMH no. 6791) from Hiraiga, Tanohata, Iwate Pref.
Age and distribution. —Aptian-Albian. Miyako group (Tanohata, Hiraiga and Aketo formations) in Tanohata, Omoto and Miyako areas.
Family uncertain
Callista ? sp.
1932. Callista(?) cf. arata (Gabb): Nagao, p. 39, pl. 6, fig. 6.
Age and distribution. —Coniacian-Santonian. Upper Yezo group in Hobetsu area.
Calva ? sp.
1925. Dosiniopsis (?) cf. caperata (Sowerby): Yabe and Nagao, p. 119, pl. 29, fig. 9.
Age and distribution. —Cenomanian-Turonian. Cape Khoi beds in Alexandrovsk area.