Orthaspidoceras
| Orthaspidoceras Temporal range:
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| Fossil shell of Orthaspidoceras schilleri, on display at Galerie de paléontologie et d'anatomie comparée in Paris | |
| Scientific classification | |
| Kingdom: | Animalia
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| Phylum: | |
| Class: | Cephalopoda
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| Order: | |
| Family: | |
| Genus: | Orthaspidoceras Spath 1925
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| Species [1] | |
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Orthaspidoceras is an extinct ammonoid cephalopod genus belonging to the family Aspidoceratidae. These nektonic carnivores lived during the Jurassic period, Kimmeridgian age.[2]
Description[]
Shells of Orthaspidoceras are medium or large-sized, with a diameter reaching about 20–25 centimetres (7.9–9.8 in). These shells are relatively involute and thick, with a quadrate-rounded or depressed whorls. The ornamentation consists of a row of coarse tubercles and fine streaks.[1]
Distribution[]
Jurassic deposites of Italy, Mexico, Switzerland and Yemen [3]
References[]
- ^ a b Jean-ours.filippi
- ^ Sepkoski, Jack Sepkoski's Online Genus Database – Cephalopoda Archived 2016-02-25 at the Wayback Machine
- ^ Paleobiology Database – Orthaspidoceras. 2014-05-29.
- Arkell, et al.,1957. Mesozoic Ammonoidea; Treatise on Invertebrate Paleontology, Part L (Ammonoidea). Geol Soc of America and Univ Kansas Press. p. L338-339.
External links[]
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Categories:
- Jurassic ammonites
- Fossils of Italy
- Fossils of Mexico
- Kimmeridgian life
- Ammonitida genera
- Aspidoceratidae
- Ammonitina stubs