Ptychopleura brevifrons Kobayashi
| 1936. | Ptychopleura brevifrons Kobayashi Paratype Kobayashi, T. 1936a p. 165, pl. 21, fig. 8 |
| Condition: | Missing |
| Preservation: | Plaster cast: The original specimen in National Museum of Canada, Ottawa |
| Taxonomy: | Arthropoda: |
| Geologic Time: | Paleozoic: |
| Kobayashi, T., 1936a: Cambrian and Lower Ordovician trilobites from northwestern Canada. Journal of Paleontology, vol. 10, no. 3, pp. 157–167, pl. 21. (Reference No. 0093) |
 PDF in prep. |
| Ichikawa, T. and Hayami, I., 1978, no. 2, p. 110. |
