Cleoniceras
| Cleoniceras Temporal range: Cret L & M Albian | |
|---|---|
 | |
| Cleoniceras besairiei, Madagascar | |
| Scientific classification | |
| Class: | Cephalopoda |
| Subclass: | Ammonoidea |
| Order: | Ammonitida |
| Superfamily: | Hoplitaceae |
| Family: | Hoplitidae |
| Genus: | Cleoniceras Parona & Bonnarelli 1895 |
Cleoniceras is a rather involute, high-whorled hoplitid from the Lower to basal Middle Albian of Europe, Madagascar, and Transcaspian region. The shell has a generally small umbilicus, arched to acute venter, and typically at some growth stage, falcoid ribs that spring in pairs from umbilical tubercles, usually disappearing on the outer whorls.
Cleoniceras is included in the subfamily Cleoniceratinae.
Species
This genus contains the species C. cleon and C. besairiei.
References
- Treatise on Invertebrate Paleontology, Part L (Ammonoidea). R.C. Moore (ed). Geological Soc of America and Univ. Kansas Press (1957), p L394
 |
Wikimedia Commons has media related to Cleoniceras. |
This article is issued from Wikipedia - version of the 10/14/2015. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.