Species
Ptychometopus volborthi (Schmidt, 1894)
Synonymy list
1894 Calymene (Ptychometopus) volborthi sp. nov. — Schmidt , pp. 32
Classification
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Arthropoda |
| Subphylum | Trilobita |
| Order | Phacopida |
| Suborder | Calymenina |
| Family | Pharostomatidae |
| Genus | Ptychometopus |
| Species | schmidti |
| volborthi |