Danoceras
| Danoceras Temporal range: ?M - Late Ordovician | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Class: | Cephalopoda |
| Subclass: | Nautiloidea |
| Order: | Oncocerida |
| Family: | Diestoceratidae |
| Genus: | Danoceras Troedsson 1926 |
Danoceras is an essentially straight shelled oncocerid named by Troedsson in 1926, and included in the Diestoceratidae. It has been found in the upper, and possibly middle, Ordovician of Europe, (Estonia), Greenland, and Russia, (Taimyr Peninsula). Named species include Danoceras ravni, type, D. inutile, and D. scandinavicum
The Danoceras shell is oval in section, laterally compressed with broadly rounded sides and narrowly rounded dorsum and venter. Chambers are short, septa close spaced, sutures straight and transverse. The siphuncle is subventral, close to but not touching the ventral margin. In form, cyrtochoanitic, necks recumbant.
Related genera include Diestoceras, Dowlingoceras, Lychholmoceras, and Suttonoceras.
References
- Walter C Sweet, 1964. Nautiloidea - Oncocerida. Treatise on Invertebrate Paleontology. Geological Society of America and University of Kansas Press.
This article is issued from Wikipedia - version of the 3/17/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.