Euomphalus
Euomphalus Temporal range: Silurian–Permian | |
---|---|
Euomphalus pentangulatus | |
Scientific classification | |
Kingdom: | Animalia |
Phylum: | Mollusca |
Class: | Gastropoda |
Superfamily: | Euomphaloidea |
Family: | Euomphalidae |
Genus: | Euomphalus J. de C. Sowerby, 1814 |
Euomphalus is a genus of fossil marine gastropods known to have lived from the Silurian to the Middle Permian.[1] [2]
Euomphalus is characterized by a closely coiled shell with a depressed to slightly elevated spire and a channel-bearing angulation (a selenizone) on the upper surface of the whorls. The lower surface of the whorls is rounded to angular.[1]
Amphiscapha, Philoxene, and Straparollus are among similar related genera. Serpulospira, also related, differs in having a broadly open spiral in the adult form.
Taxonomy
Euomphalus is the type genus of the family Euomphalidae. Euomphalus pentangulatus (Sowerby) is its type species.
References
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