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

  1. Sepkoski, Jack (2002). "Sepkoski's Online Genus Database". Retrieved 2014-05-28.
  2. "†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

This article is issued from Wikipedia - version of the 10/4/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.