Uraloclymenia
| Uraloclymenia Temporal range: Famennian | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| Subclass: | †Ammonoidea |
| Order: | †Clymeniida |
| Family: | †Pachyclymeniidae |
| Genus: | †Uraloclymenia Bogoslovskii, 1977 |
Uraloclymenia is an extinct ammonoid cephalopod genus from the Late Devonian, Famennian stage. The type species is Uraloclymenia volkovi Bogoslovskii, 1977
The shell of Uranloclymenia is lenticular, with a narrow umbilicus and usually free of ribs. Constrictions are absent. The suture has a very broad, shallow ventral lobe, a shallowly rounded lateral lobe, an inconspicuous umbilical lobe inside the umbilical seam, and an internal lobe on the dorsum. As for all clymeniids, the siphuncle is along the dorsum.
References
- Taxonomy, Goniat online 8/21/2010
- Paleobiology Database-Uraloclymenia 8/21/2010
- W. B. Saunders, D. M. Work, S. V. Nikolaeva (1999). "Evolution of complexity in Paleozoic ammonoid sutures". Science 286 (5440): 760–763.
This article is issued from Wikipedia - version of the 8/18/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.