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Westlothiana is a genus of reptile-like amphibian or possibly early reptile that bore a superficial resemblance to modern-day lizards. It lived during the Carboniferous period, about 350 million years ago. It is known from a single species, Westlothiana lizziae. The type specimen was discovered in East Kirkton Quarry, Bathgate, Scotland, in 1984. Westlothiana's anatomy contained a mixtures of both labyrinthodont and reptilian features, and was originally regarded as the first reptile. Most scientists place them among the Reptilomorpha, as a sister group to the first amniotes.
Titanosuchus ferox (Fierce Titan crocodile) was a dinocephalian therapsid that lived in the Mid Permian epoch in South Africa. Despite the name, it was not related to crocodiles. Along with its close relatives, Jonkeria and Moschops, Titanosuchus inhabited present-day South Africa around 255 million years ago, in the Late Permian. Titanosuchus was a carnivore which measured over 2.5 m long and might have eaten both Jonkeria and Moschops, among other vertebrates. Its teeth included sharp incisors and fang-like canines, perfect for biting prey.
Thrinaxodon was a genus of cynodont that lived during the Triassic Period (248-245 million years ago) notable for being a transitional fossil. The two known species ranged in size from that of a small badger (50 cm) to ermine-sized (30 cm long) therapsid. Pits on the skull suggest that Thrinaxodon may have had whiskers, but whether it also had fur is debated. In response to the wide daily temperature swings of the early Triassic, it may have been eurythermic, able to function at a broad range of temperatures; this could have laid the groundwork for the development of homeothermic endothermy. Like its predecessors, Thrinaxodon laid eggs, and there were many reptilian features in its skeleton.
Information about the reptile Champsosaurus
Information about the reptile Askeptosaurus