Plate XXIV: Devonian gastropods and cephalopods
Figure Number |
Modern genus and species |
1889 Genus and species |
Phyllum or Class |
Age, etc. |
1 |
? |
Nautilus maximus (Conrad 1838) |
cephalopod |
Devonian |
2-5 |
Elasmonema clarki (Nettelroth) |
Callonema clarki n. sp. |
gastropod |
Devonian |