| Figure Number |
Modern genus and species |
1889 Genus and species |
Phyllum or Class |
Age, etc. |
| 1 |
Platyceras milleri Nettelroth |
Platyceras milleri n. sp. |
gastropod |
Devonian |
| 2, 11 |
Orthonychia conicum (Hall) |
Platyceras conicum Hall 1861 |
gastropod |
Devonian |
| 3 |
same as 1889 |
Platyceras bucculentum Hall 1861 |
gastropod |
Devonian |
| 4 |
same as 1889 |
Platyceras multispinosum Meek 1871 |
gastropod |
Devonian |
| 5-7 |
? |
Platyostoma lineata var. callosa Hall 1876 |
gastropod |
Devonian |
| 8, 9 |
same as 1889 |
Platyceras compressum n. sp. |
gastropod |
Devonian |
| 10 |
same as 1889 |
Platyceras ventricosum Conrad 1840 |
gastropod |
Devonian |
