Genus
Atopacanthus Hussakof et Bryant, 1918
| Images | ||||||
|---|---|---|---|---|---|---|
| GIT 818-203 | 18 Mile Creek, New York | Frasnian | Rhinestreet shale | copy of the holotype | |||
| GIT 818-204 | Eifelian | Onondaga Beds | other type |
| Images | ||||||
|---|---|---|---|---|---|---|
| GIT 818-203 | 18 Mile Creek, New York | Frasnian | Rhinestreet shale | copy of the holotype | |||
| GIT 818-204 | Eifelian | Onondaga Beds | other type |