Thrinaxodon

Common card · No. 245845

Thrinaxodon is an extinct genus of cynodonts which lived in what are now South Africa and Antarctica during the Early Triassic. The genus is a monotypic genus and contains only the type species T. liorhinus. Similar to other therapsids, Thrinaxodon adopted a semi-sprawling posture, an intermediary form between the sprawling position of basal tetrapods and the more upright posture present in current mammals. Thrinaxodon is prevalent in the fossil record, and one of the specimens represent the oldest known record of burrowing behavior among cynodonts.

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