Cochlioceras
From Wikipedia, the free encyclopedia
| Cochlioceras Fossil range: uL-lM Ordovician |
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|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| Subclass: | Orthoceratoidea |
| Order: | Orthocerida |
| Family: | Baltoceratidae |
| Genus: | Cochlioceras Eichwald (1860) |
Cochlioceras is an extinct baltoceratid genus from the lower and middle Ordovician (Arenig - Llanvrin) of what are now Europe, the U.S (Vermont), and China, having existed for approximately 14 million years, from about 478 to 464 mya. [1]
[edit] Taxonomy
Cochlioceras was named by Eichwald (1860). Its type is Cochlioceras avus. It was assigned to the Baltoceratidae by Furtnish and Glensiter in Teichert et al (1964) [1] and removed, with the Baltoceratidae, from the Ellesmerocerida to the Orthocerida by Kroger et al (2007)[2]
[edit] References
- ^ a b Teichert et al 1964, Treatise on Invertebrate Paleontology Part K; Nautiloidea - Ellesmerocerida by W.M. Furnish and Brian F. Glenister, pp K129 -K160.
- ^ Kroger et al 2007; Early orthoceratoid cephalopods from the Argentine Precordillera; Jour Paleo Nov 2007; v. 81; no. 6; p. 1266-1283
- PaleoBiology Database: Cochlioceras, basic info
- Fossils (Smithsonian Handbooks) by David Ward
