Inostrancevia
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Inostrancevia alexandri |
Inostrancevia was a Gorgonopsidae therapsid found in Sokolki, on Smaller Northern Dvina River near Arkhangelsk in Russia. The animal lived 245 million years ago. Most of the specimen (I. alexandri) was found, except minor rib and vertebrae attachments.
The species was a quadruped that had an upright posture of 1-4.3 metres long, 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.
There are 4 species of Inostrancevia:
- Inostrancevia alexandri
- Inostrancevia latifrons
- Inostrancevia uralensis
- Inostrancevia vladimiri
[edit] References
- Patricia Vickers-Rich and Thomas H. Rich, The Great Russian Dinosaurs, Guntar Graphics, 1993, pg.39
