The Fremouw Formation is a Triassic-age rock formation in the Transantarctic Mountains of the Ross Dependency of Antarctica. It contains the oldest known fossils of tetrapods from Antarctica, includin

Lystrosaurus is an extinct genus of herbivorous dicynodont therapsids from the late Permian and Early Triassic epochs. It had a widespread distribution across Pangaea, with fossils having been found i