Coelodiscus
Encyclopedia
Ceolodiscus is a genus in the gastropod family Euomphalidae
from the Lower and Middle Jurassic
of Europe. The shell is small but stocky; involute or with a slightly protruding spire. Whorls are generally smooth, evenly rounded and slightly overlapping; umbilicus deep, aperture ovate.
Euomphalidae
Euomphalidae is an extinct family of Paleozoic molluscs which may possibly be gastropods with anisostrophically coiled shells .- Genera :Genera in the family Euomphalidae include:...
from the Lower and Middle Jurassic
Jurassic
The Jurassic is a geologic period and system that extends from about Mya to Mya, that is, from the end of the Triassic to the beginning of the Cretaceous. The Jurassic constitutes the middle period of the Mesozoic era, also known as the age of reptiles. The start of the period is marked by...
of Europe. The shell is small but stocky; involute or with a slightly protruding spire. Whorls are generally smooth, evenly rounded and slightly overlapping; umbilicus deep, aperture ovate.
References
- J. B. Knight et al. 1960. Systematic descriptions; Treatise on Invertebrate Paleontology, Part I, Mollusca (1):I196.
- Coelodiscus