Euomphalus
Euomphalus Temporal range:
| |
---|---|
Euomphalus pentangulatus | |
Scientific classification | |
Kingdom: | Animalia |
Phylum: | Mollusca |
Class: | Gastropoda |
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]
Description[]
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, , and are among similar related genera. , 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, 1814) is its type species.
Species[]
- Euomphalus pentangulatus Sowerby, 1814(type)
- Euomphalus radiatus Menke, 1850: synonym of Heliacus (Heliacus) areola bicanaliculatus (Valenciennes, 1832) represented as Heliacus areola bicanaliculatus (Valenciennes, 1832)
References[]
Categories:
- Euomphalidae
- Silurian first appearances
- Permian genus extinctions
- Carboniferous molluscs
- Paleozoic molluscs of North America
- Paleozoic life of Ontario
- Paleozoic life of Manitoba
- Paleozoic life of the Northwest Territories
- Paleozoic life of Nunavut
- Prehistoric gastropod stubs