Danaoceras
 | This article may be too technical for most readers to understand. (July 2020) |
| Danaoceras Temporal range: Middle Silurian
| |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| Subclass: | Nautiloidea |
| Order: | †Oncocerida |
| Family: | †Polyelasmoceratidae |
| Genus: | †Danaoceras Foerste, 1926 |
Danaoceras is a nautiloid cephalopod from the middle Silurian of central Europe included in the oncocerid family Polyelasmoceratidae. Similar specimens from the middle Devonian of North America may belong.
Danaoceras has a laterally compressed shell curved such that the ventral or siphuncular side is longitudinally concave, i.e. is endogastric. The siphuncle, which is ventrally submarginal, contains laminar actinosiphonate deposits.
Danaoceras is the ancestral genus of the Polyelasmoceratidae and is possibly derived from either Oonoceras or Oocerina of the Oncoceratidae based on similarities of the siphuncle
References
[edit] | This article includes a list of references, related reading, or external links, but its sources remain unclear because it lacks inline citations. (March 2015) |
- Walter C. Sweet, 1964. Nautiloidea - Oncocerida; Treatise on Invertebrate Paleontology, Part K. Geological Society of America.
 | This prehistoric nautiloid-related article is a stub. You can help Wikipedia by expanding it. |