Cynognathus
| Cynognathus Temporal range: Triassic
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| Cynognathus | |
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| Family: | Cynognathidae
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| Genus: | Cynognathus
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| Cynognathus crateronotus Seeley, 1895
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Cynognathus is a therapsid that was the size of a wolf. This predator lived on open plains during the early to middle Triassic period, roughly 230-245 million years ago. It was probably warm-blooded, and females may have given birth to live young. Fossils have been found in South Africa and Argentina with four other creatures of the time: Lystrosaurus, Proterosuchus, Euparkeria and Erythrosuchus.