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Broomistega
''Broomistega'' is an extinct genus of temnospondyl amphibian in the family Rhinesuchidae. It is known from one species, ''Broomistega putterilli'', which was named in 2000. Fossils are known from the Early Triassic ''Lystrosaurus'' Assemblage Zone of the Beaufort Group in the Karoo Basin of present-day South Africa, a region that had been an enclave of Gondwana. Specimens of ''B. putterilli'' were once thought to represent young individuals of another larger rhinesuchid such as ''Uranocentrodon'', but the species is now regarded as a paedomorphic taxon, possessing the features of juvenile rhinesuchids into adulthood.
In 2013, a well preserved skeleton of ''Broomistega'' was discovered alongside the skeleton of the cynodont ''Thrinaxodon'' (a mammal relative) in a cast of a burrow. The individual probably entered the burrow while the cynodont was in a state of aestivation (dormancy), and afterwards a flash flood filled the burrow with sediment to preserve both bodies together.
==Paleobiology==
''Broomistega'' is the only rhinesuchid known from the Triassic Period. Its presence in the Early Triassic indicates that rhinesuchids survived the Permo-Triassic Mass Extinction about 252 million years ago. However, compared to the diversity of rhinesuchids that existed in the Permian Period, ''Broomistega'' is a very rare component of the Early Triassic Karoo fauna. It may have been the last surviving representative of the group, making it a relict taxon.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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