Plate XXI: Devonian gastropods and cephalopods

Figure Number Modern genus and species 1889 Genus and species Phyllum or Class Age, etc.
1, 2 Pleuronotus decewi (Billings) Euomphalus decewi Billings 1861 gastropod Devonian
3, 4 Straparollus sampsoni (Nettelroth) Euomphalus sampsoni n. sp. gastropod Devonian
5, 6 Naticonem turbinatum (Hall) Platyostoma turbinata Hall 1861 gastropod Devonian
7, 8 Naticonem lineatum (Conrad) Platyostoma lineata Conrad 1842 gastropod Devonian
9, 10, 13 Bembexia procteri (Nettelroth) Pleurotomaria procteri n. sp. gastropod Devonian
11, 12 Bembexia sulcomarginata (Conrad) Pleurotomaria sulcomarginata Conrad 1842 gastropod Devonian
14 ? Platyostoma lineata var. callosa Hall 1876 gastropod Devonian
15, 16 ? Gomphoceras turbiniforme Meek ∓ Worthen 1876 cephalopod Devonian
17, 18 Ovoceras oviforme (Hall) Gomphoceras oviforme Hall 1860 cephalopod Devonian

 

 

 

 

Last Modified on 2019-02-05
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