Ptychaspis bella Walcott
| 1931. | Ptychaspis bella Walcott Kobayashi, T. 1931a p. 180, pl. 22, fig. 6 |
| Condition: | Present |
| Taxonomy: | Arthropoda: |
| Geologic Time: | Paleozoic: |
| Kobayashi, T., 1931a: Studies on the stratigraphy and palaeontology of the Cambro-Ordovician formation of Hua-lien-chai and Niu-hsin-tai, south Manchuria. Japanese Journal of Geology and Geography, vol. 8, no. 3, pp. 131–189, pls. 16–22. (Reference No. 0075) |
 PDF in prep. |
| Ichikawa, T. and Hayami, I., 1978, no. 2, p. 65. |
