Inostrancevia
| Inostrancevia Temporal range: Late Permian |
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| Restored skeleton | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Synapsida |
| Order: | Therapsida |
| Suborder: | Gorgonopsia |
| Family: | Gorgonopsidae |
| Genus: | Inostrancevia Amalitsky, 1922 |
| Species | |
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I. alexandri Amalitsky, 1922 |
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Inostrancevia is a genus of gorgonopsid therapsid found in Sokolki, on the Smaller Northern Dvina River near Kotlas in Arkhangelsk Oblast, Russia. The animal lived 251 million years ago during the Late Permian. The species I. alexandri is known from an almost complete skeleton missing some minor rib and vertebrae attachments.
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[edit] Description
As with all other gorgonopsid species, it was a quadruped that had an upright posture of 1-4.3 metres long (as large as a bear), with a bone structure characteristic of strong muscle attachments. The skull of 45 cm in length contained a smaller eye socket and larger temporal opening than other less advanced therapsids, like Biarmosuchus tener. The teeth were quite large, the upper palate containing 6 large incisors, 2 large canines and 10 smaller back teeth and the mandible contained 6 large incisors and 8 smaller incisors.
[edit] See also
[edit] References
- Amalitzky, V., 1922, "Diagnoses of the new forms of vertebrates and plants from the upper Permian of North Dvina", Bulletin de l’Academie des Sciences, Saint Petersburg, 6th series, v. 16, p. 329-340.
- Pravoslavlev, P. A., 1927, "Gorgonopsidae from Professor Amalitzki’s excavations in the northern Dvina" In: Excavations by Professor Amalitzki in the northern Dvina III: Akad. Nauk. Leningrad, p 117.
- Vickers-Rich, P. and Rich,T. H., 1993, "The Great Russian Dinosaurs", Guntar Graphics, p. 39
[edit] External links
- Taxonomical Information
- Raúl Martín. "Inostrancevia" (pencil drawing). http://www.raul-martin.net/raulmartin/tres/inostrancevia.htm.
- Anatomical Information
