Oryctocephalus primus (Walcott)
| 1935. | Oryctocephalus primus (Walcott) Kobayashi, T. 1935c p. 145, pl. 15, fig. 1 |
| Condition: | Missing |
| Preservation: | Plaster cast: The original specimen in U. S. National Museum, Washington D. C. |
| Taxonomy: | Arthropoda: |
| Geologic Time: | Paleozoic: |
| Kobayashi, T., 1935c: The Cambro-Ordovician formations and faunas of south Chosen. Palaeontology. Part 3. Cambrian faunas of south Chosen with a special study of the Cambrian trilobite genera and families. Journal of the Faculty of Science, Imperial University of Tokyo, Section 2, vol. 4, pt. 2, pp. 49–344, pls. 1–24. (Reference No. 0089) |
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| Ichikawa, T. and Hayami, I., 1978, no. 2, p. 105. |
