Asteroceras
| Asteroceras Temporal range: Sinemurian[1] | |
|---|---|
 | |
| Asteroceras fossil from Dorset, England. | |
 | |
| Illustration of Asteroceras species | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| Subclass: | Ammonoidea |
| Family: | Arietitidae |
| Genus: | Asteroceras |
Asteroceras is an extinct genus of cephalopod belonging to the Ammonite subclass. These fast-moving nektonic carnivores lived during the Triassic and Jurassic periods (from 205.6 to 189.6 Ma). [2]
Species
- Asteroceras blakei Spath 1925
- Asteroceras confusum Spath, 1925
- Asteroceras obtusum Sowerby, 1817
- Asteroceras reynesi Fucini 1903
- Asteroceras saltriensis Parona 1896
- Asteroceras smithii (J. dc C. Sowerby)
- Asteroceras stellare Sowerby 1815
- Asteroceras turneri (J. dc C. Sowerby)
Distribution
Asteroceras fossils may be found in the Jurassic marine strata of Canada, China, Germany, Hong Kong, Hungary, Peru, and Turkey, in the Triassic of United States and at Lyme Regis in the Asteroceras obtusum zone of Upper Sinemurian age.[4][2]
References
- ↑ Sepkoski, Jack (2002). "Sepkoski's Online Genus Database". Retrieved 2014-05-28.
- 1 2 3 Paleobiology Database - Asteroceras. 2014-05-29.
- ↑ Biolib
- ↑ Martell, D. M. 1995. An Ichthyosaur with Preserved Soft Tissue from the Sinemurian of Southern England. Palaeontology. 38(4): 897-903
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