Alsatites
| Alsatites Temporal range: Hettangian[1] | |
|---|---|
 | |
| Alsatites proaries | |
| Fossil | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| Subclass: | Ammonoidea |
| Order: | Ammonitida |
| Superfamily: | Psiloceratoidea |
| Family: | Arietitidae |
| Genus: | Alsatites Haug 1894 |
Alsatites is an extinct genus of cephalopod belonging to the Ammonite subclass. They lived during the Early Jurassic, Hettangian till the Sinemurian and are generally extremely evolute, many whorled. Keel broad and blunt organisms, they also exhibit a primary ribbing which is close and persistent.[2]
References
- ↑ Sepkoski, Jack (2002). "Sepkoski's Online Genus Database". Retrieved 2014-05-28.
- ↑ "†Alsatites Haug 1894 (ammonite)". Paleobiology Database. Retrieved 2 December 2013.
- Arkell, et al.,1957. Mesozoic Ammonoidea; Treatise on Invertebrate Paleontology, Part L (Ammonoidea). Geol Soc of America and Univ Kansas Press, Revised 2013, Part L, Michale K. Howarth
- Sepkoski Online
- Moore,, Raymond C (1957). Treatise of Invertebrate Paleontology. Boulder, Colorado: The Geological Society of America, University of Kansas. p. L235. ISBN 0-8137-3112-7.
External links
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