Omphalotrochus is an extinct taxonomic genus of Paleozoic gastropods. It is widely distributed in the upper Paleozoic and has been an important index fossil.
Species
Species in the genus Omphalotrochus include:
- O. alleni <small>Yochelson, 1956</small>
- O. antiquus <small>d'Orbigny, 1842</small>
- O. calaniculatus <small>Trautschold, 1879</small>
- O. cochisensis <small>Yochelson, 1956</small>
- O. hessensis <small>Yochelson, 1956</small>
- O. kalitvaensis <small>Licharev, 1940</small>
- O. kalmiussi <small>Zernetskaya, 1967</small>
- O. karakubensis <small>Zernetskaya, 1967</small>
- O. obtusispira <small>Shumard, 1859</small>
- O. spinosus <small>Yochelson, 1956</small>
- O. whitneyi <small>Meek, 1864</small>
- O. wolfcampensis <small>Yochelson, 1956</small>
References