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
- ↑ 1.0 1.1 J.B.Knight,et al 1960. Treatise on Invertebrate Paleontology, Part I, Mollusca 1, ch on systematic descriptions. Geol Soc of America and Univ Kansas Press.
- ↑ (in Czech) Pek I., Vašíček Z., Roček Z., Hajn. V. & Mikuláš R.: Základy zoopaleontologie. - Olomouc, 1996. 264 pp., ISBN 80-7067-599-3.