Macrodomoceras
Macrodomoceras Temporal range: Middle Devonian | |
---|---|
Scientific classification | |
Kingdom: | Animalia |
Phylum: | Mollusca |
Class: | Cephalopoda |
Subclass: | Nautiloidea |
Order: | Oncocerida |
Family: | Polyelasmoceratidae |
Genus: | Macrodomoceras Teichert & Glenister, 1952 |
Macrodomoceras is an oncocerid genus, family Polyelasmoceratidae, from the Middle Devonian of Australia.
The shell of Macrodomoceras is a compressed, endogastric cyrtocone, i.e section higher than wide and curved with the ventral side concave, with a subtriangular cross section. The siphuncle is ventral, marginal, with continuous actinosiphonate lamellae.
Macrodomoceras resembles Danaoceras in its subtriangular cross section, but its sutures have bluntly pointed ventral saddles.
References
- Walter C. Sweet, 1964. Nautiloidea - Oncocerida; Treatise on Invertebrate Paleontology, Part K. Geological Society of America.
This article is issued from Wikipedia - version of the 3/16/2015. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.