Schlotheimia
| Schlotheimia Temporal range: Jurassic, 201.6–189.6Ma | |
|---|---|
 | |
| Schlotheimia depressa from Germany | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| Subclass: | Ammonoidea |
| Order: | Ammonitida |
| Superfamily: | Psilocerataceae |
| Family: | Schlotheimiidae |
| Genus: | Schlotheimia Bayle 1878 |
| Synonyms | |
| |
Schlotheimia is an extinct cephalopod genus belonging to the subclass Ammonoidea that lived during the Hettangian stage at the beginning of the Early Jurassic. [2]
Description
The shell, or conch, of Schlotheimia rather evolute, coiled with all whorls exposed and only slightly embracing. The umbilicus is perforate as with more finely ribbed Angulaticeras. whorls are compressed, bearing ribs that cross the venter in chevrons, less developed in Sulciferites
Distribution
Fossils of Schlotheimia species have been found in Lower Jurassic rocks of Argentina, Austria, Belgium, Canada, France, Germany, Indonesia, Italy, Luxembourg, Switzerland, United Kingdom, United States. [1]
References
- W.J Arkell, et al, 1957. Mesozoic Ammonoidea, Treatise on Invertebrate Paleontology, Part L, Mollusca 4. Geological Society of America and University of Kansas Press.