Английская Википедия:Euomphalus
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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, 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, 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
- ↑ 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., Шаблон:ISBN.
Категории:
- Английская Википедия
- Euomphalidae
- Silurian first appearances
- Permian genus extinctions
- Paleozoic molluscs of North America
- Paleozoic life of Ontario
- Paleozoic life of Manitoba
- Paleozoic life of the Northwest Territories
- Paleozoic life of Nunavut
- Silurian gastropods
- Devonian gastropods
- Carboniferous gastropods
- Permian gastropods
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