| Acteon cretacea | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Heterobranchia |
| Superfamily: | Acteonoidea |
| Family: | Acteonidae |
| Genus: | Acteon |
| Species: | †A. cretacea
|
| Binomial name | |
| †Acteon cretacea Gabb, 1862
| |
| Synonyms | |
|
† Acteon forbesiana Whitfield, 1892 | |
Acteon cretacea is an extinct species of sea snail, a marine gastropod mollusc in the family Acteonidae.[1]
Description
(Original description) The subglobose spire is elevated. It contains five convex whorls, sloping on the sides and obliquely truncated above. The body whorl is sub-compressed, most convex above, its width about equal to the length of the aperture. The aperture is narrowed above, wide below and rounded anteriorly. There are two folds on the columella: the upper one heavy and rounded, the lower or anterior one, obsolete. The columellar edge of the body whorl in one of the casts is marked by acute-angular striae, one branch extending directly upwards on the outside of the whorls (inside of the shell), and soon becoming obsolete. The other branch runs into the columellar cavity. [2]
Distribution
Fossils of this marine species have been found in Cretaceous strata in New Jersey, USA.
References
- ^ MolluscaBase eds. (2024). MolluscaBase. Acteon cretacea Gabb, 1862 †. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=1348972 on 2024-04-03
- ^ Gabb, W. M. (1862). Descriptions of new species of Cretaceous fossils from New Jersey, Alabama and Mississippi. Proceedings of the Academy of Natural Sciences of Philadelphia. 13: 318-330
This article incorporates text from this source, which is in the public domain.
External links
- Whitfield R.P. (1892). Gastropoda and Cephalopoda of the Raritan Clays and Greensand Marls of New Jersey. United States Geological Survey Monograph. 18: 1-402, 50 pls
- Cunha, C. M. & Salvador, R. B. (2018). Type specimens of fossil “Architectibranchia” and Cephalaspidea (Mollusca, Heterobranchia) in the Academy of Natural Sciences of Philadelphia. Zoosystematics and Evolution. 94(2): 505-527
- MNHN, Paris: image
This page was last edited on 15 May 2024, at 04:25