Dvinia

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Dvinia Fossil range: Late Permian
Scientific classification
Kingdom: Animalia Phylum: Chordata Class: Synapsida Order: Therapsida Suborder: Cynodontia Family: Dviniidae Genus: Dvinia
Binomial name
Dvinia prima Amalitskii, 1922

Dvinia was a therapsid mammal-like "reptile" of the family Dviniidae found in Sokoli on the Dvina river near Archangelsk in Russia. Its fossil remains date from the Late Permian and were found with Inostrancevia, Scutosaurus and Dicynodon trautscholdi.

The species was small omnivore containing an extremely large temporal opening typical of advanced therapsids, with a thin bone separating the eye and muscle attachment. It is very close in the evolutionary line to mammals, but more analysis of the Cynodontia's is needed. The teeth contain small incisors followed by 2 canines and 10-14 molar teeth following.

[edit] References

• Patricia Vickers-Rich and Thomas H. Rich, The Great Russian Dinosaurs, Guntar Graphics, 1993, pg.41

[edit] External links

• Procynosuchidae
• Another Russian dinosaur
• Cynodontia Dvinia
• DVINIA
• BASAL CYNODONTS
• Mikko's Phylogeny Archive Cynodontia – cynodonts
• [1]
• Dvinia, Gondwana Studios