Involuticeras
| Involuticeras Temporal range: Upper Jurassic | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| Subclass: | Ammonoidea |
| Order: | Ammonitida |
| Superfamily: | Perisphinctoidea |
| Family: | Perisphinctidae |
| Genus: | Involuticeras Quenstedt, 1846 |
Involuticeras is a perisphinctoid ammonite belonging to the Aulacostephanininae from the Upper Jurassic of Europe and possibly Mexico. The shell is involute, moderately compressed, with a rounded and ribbed venter. The genus is similar in general form to Aulacostephanus and Epicephalites.
References
Treatise on Invertebrate Paleontology, Part L,(1957), Mesozoic Ammonoidea, p.L324.