PART II. PALEOZOIC BIVALVIA
SYSTEMATIC CATALOGUE
Subclass Heterodonta
Subclass HETERODONTA Neumayr, 1884 |
 Explanation of Plate 11 Fig. 1. Ensipteria onukii. Nakazawa and Newell: type-species of genus Ensipteria. Holotype (UK). L atex cast from left internal mould, × 3. Reproduced from Nakazawa and Newell, 1968, pl. 3, fig. 12b. Loc. Tenjinnoki, Miyagi Pref. (Middle Permian, Tenjinnoki Formation). Fig. 2. The same species. Paratype (UK). Latex cast from right external mould, × 2. Reproduced from Nakazawa and Newell, 1968, pl. 3, fig. 13. Loc. ditto. Fig. 3. Towapteria nipponica Nakazawa and Newell: type-species of genus Towapteria. Paratype (UK). Left internal mould, × 4. Reproduced from Nakazawa and Newell, 1968, pl. 3, fig. 7. Loc. Tenjinnoki, Miyagi Pref. (Middle Permian, Tenjinnoki Formation). Fig. 4. The same species. Holotype (UK). Latex cast of left external mould, × 3. Reproduced from Nakazawa and Newell, 1968, pl. 3, fig. 8. Loc. ditto. Fig. 5. Tambanella gujoensis Nakazawa and Newell: type-species of genus Tambanella. Holotype (UK). Latex cast from right internal mould, × 2. Reproduced from Nakazawa and Newell, 1968, pl. 4, fig. 8. Loc. Gujo, Kyoto Pref. (Upper Permian, Gujo Formation). Fig. 6. The same species. Paratype (UK). Left internal mould, × 4. Reproduced from Nakazawa and Newell, 1968, pl, 4, fig. 5. Loc. ditto. Fig. 7. Waagenoperna (Permoperna) hayamii Nakazawa and Newell: type-species of subgenus Permoperna. Holotype (UK). Right internal mould, × 3. Reproduced from Nakazawa and Newell, 1968, pl. 3, fig. 11. Loc. Tenjinnoki, Miyagi Pref. (Middle Permian Tenjinnoki Formation). Fig. 8. Lopha? murakamii Nakazawa and Newell. Holotype (UK). Latex cast from left (?) external mould, × 2. Reproduced from Nakazawa and Newell, 1968, pl. 7, fig. 8b. Loc. Gujo, Kyoto Pref. (Upper Permian, Gujo Formation). Fig. 9. Permophorus tenuistriatus Nakazawa and Newell. Syntype (UK). Latex cast from left internal mould, × 2. Reproduced from Nakazawa and Newell, 1968, pl. 9, fig. 8. Loc. Gujo, Kyoto Pref. (Upper Permian, Gujo Formation). Fig. 10. Gujocardia oviformis Nakazawa and Newell: type-species of genus Gujocardia. Holotype (UK). Latex cast from left internal mould, × 5, Reproduced from Nakazawa and Newell, 1968, pl. 9, fig. 1. Loc. Gujo, Kyoto Pref. (Upper Permian, Gujo Formation). Fig. 11. The same species. Paratype (UK). Latex cast from right external mould, × 4. Reproduced from Nakazawa and Newell, 1968, pl. 9, fig. 4a. Loc. ditto. Fig. 12. Astartella toyomensis Nakazawa and Newell. Paratype (UK). Latex cast from left external mould, × 2. Reproduced from Nakazawa and Newell, 1968, pl. 10, fig. 5. Loc.Kitazawa, Miyagi Pref. (Upper Permian, Toyoma Formation). Fig. 13. The same species. Holotype (UK). Latex cast from left internal mould, × 2. Reproduced from Nakazawa and Newell, 1968, pl. 10, fig. 3. Loc. ditto. |
Genus Netschajewia Yakovlev, 1925
Netschajewia sp. cf. N. elongata (Netschajew)
1968. Netschajewia cf. elongata (Netschajew): Nakazawa and Newell, p. 95, pl. 11, figs. 5, 6.
Age and distribution. —Upper Permian (Tartarian or thereabout). Toyoma Formation in Towa area of Miyagi Prefecture.
Genus Pseudopermophorus Ciriacks, 1963
Pseudopermophorus uedai Nakazawa and Newell
1968. Pseudopermophorus uedai Nakazawa and Newell, p. 94, pl. 9, figs. 10, 11.-1976b. Pseudopermophorus uedai Nakazawa et Newell: Murata, pl. P-19, figs, 1, 2, 3a, b, 4.
Type. —Syntypes (UK, not registered, seven specimens) from the Toyoma Formation at Nagahata, Towa-cho, and at Kitazawa, Toyoma-cho, Tome-gun, Miyagi Prefecture.
Age and distribution. —Upper Permian (Tartarian or thereabout). Toyoma Formation in Towa and Toyoma areas of Miyagi Prefecture.
Subfamily MYOCONCHINAE Newell, 1957
Genus Stutchburia Etheridge, Jr., 1900
Stutchburia? sp.
1968. Stutchburiaf sp.: Nakazawa and Newell, p. 96, pl. 10, fig. 2.
Age and distribution. —Middle Permian (Kazanian). Tenjinnoki Formation of the Maiya Group in Towa area of Miyagi Prefecture.
Subfamily uncertain
Myoconcha? sp.
1967. Myoconcha sp.: Hayasaka, p. 519, text-figs. 2a-d.
Age and distribution. —Middle Permian (Artinskian or Kazanian). Lower part of the Kanokura Formation in Kesennuma area of Miyagi Prefecture.
Family CARDITIDAE Fleming, 1828
Subfamily PALAEOCARDITINAE Chavan, 1969
Genus Gujocardia Nakazawa and Newell, 1968
Gujocardia oviformis Nakazawa and Newell [Pl. 11, Figs. 10, 11]
1968. Gujocardia oviformis Nakazawa and Newell, p. 91, pl. 9, figs. 1-3, 4a, b, 5, 6.
Type. —Holotype (UK, not registered, Nakazawa and Newell, 1968, pl. 9, fig. 1) from the Gujo Formation at Gujo, Oe-cho, Kasa-gun, Kyoto Prefecture.
Age and distribution. —Upper Permian (stage unknown). Known only from the type locality.
Superfamily CRASSATELLACEA Ferussac, 1822
Family ASTARTIDAE d'Orbigny, 1844
Subfamily ASTARTINAE d'Orbigny, 1844
Genus Astartella Hall, 1858
Astartella toyomensis Nakazawa and Newell [Pl. 11, Fig. 12]
1968. Astartella toyomensis Nakazawa and Newell, p. 98, pl. 10, figs. 3, 4a-c, 5.-1969. Astartella toyomensis Nakazawa and Newell: Murata, p. 19, pl. 4, figs. 9-11, 12a, b, 13, 14a, b,15a, b,16a, b,17a, b.
Type. —Holotype (UK, not registered, Nakazawa and Newell, 1968, pl. 10, fig. 3) from the Toyoma Formation at Kitazawa, Toyoma-cho, Tome-gun, Miyagi Prefecture.
Age and distribution. —Upper Permian (Tartarian or thereabout). Toyoma Formation in Toyoma and Towa areas of Miyagi Prefecture, and Kowaragi Formation in Karakuwa area of the same prefecture.
Astartella sp.
1968. Astartella sp. a: Nakazawa and Newell, p. 99.
Age and distribution. —Upper Permian (Tartarian or thereabout). Upper part of the Maizuru Group in Oe area of Kyoto Prefecture.
Astartella sp.
1968. Astartella sp. b: Nakazawa and Newell, p. 100, pl. 11, fig. 9.
Age and distribution. —Middle Permian (Kazanian or thereabout). Upper part of the Mizukoshi Formation in Mifune area of Kumamoto Prefecture.
Astartella sp.
1968. Astartella sp. c: Nakazawa and Newell, p. 101, pl. 11, fig. 8.
Age and distribution. —Upper Permian (Tartarian or thereabout). Upper part of the Maizuru Group in Oe area of Kyoto Prefecture.
Astartella? sp.
1968. Astartellaf sp. d: Nakazawa and Newell, p. 101, pl. 11, fig. 10.
Age and distribution. —Middle Permian (Kazanian). Shigejizawa member of the Kanokura Formation in Kesennuma area of Miyagi Prefecture.
Astartella? sp.
1967. Aster fella cf. permocarbonica Tschernyschew [typographical error of Astartella]: Yanagisawa, p. 97, pl. 3, figs. 10, 15.
Age and distribution. —Middle Permian (stage unknown). Kashiwadaira Formation of the Takakurayama Group in Yotsukura area of Pukushima Prefecture.