Alsatites

 ( Early Jurassic Ammonites ) 

Alsatites is an extinct genus of cephalopod belonging to the Ammonite subclass. They lived during the Hettangian and are generally extremely evolute, many whorled. Keel broad and blunt organisms, they also exhibit a primary ribbing which is close and persistent.

Notes

Bibliography

* 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

*

Raymond C Moore (2026). 9780813731124, The Geological Society of America, University of Kansas. ISBN 9780813731124

• Blog post about Hettangian ammonites by Peter Reiter