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Brachyopoidea
Brachyopoidea is a superfamily of temnospondyls that lived during the Mesozoic. It contains the families Brachyopidae and Chigutisauridae. The earliest records of brachyopids are from the Lower Triassic in Australia. The latest-surviving member of the superfamily is the chigutisaurid ''Koolasuchus'' from the Early Cretaceous of Australia.
==Description==
Some large brachiopoids, such as ''Siderops'' and ''Koolasuchus'', grew to lengths of around . However, an unnamed Late Triassic or Early Jurassic brachiopoid from Lesotho in southern Africa is estimated to have been far larger. At an estimated , the brachiopoid from Lesotho is one of the largest amphibians ''sensu lato'' ever known.〔 This estimate is based on a single jaw fragment found in 1970 by a French expedition near Alwynskop in Quthing.
Because of its size, the fragment was initially considered to be from a mastodonsaur.〔(【引用サイトリンク】title=Temnospondyli: Trematosauria (2): Rhytidosteids & Brachyopoids )〕 However, the specimen was redescribed as a brachyopoid in 2005. Several features of the specimen indicate that it is from a brachyopoid. There is a large tusk protruding from the ectopterygoid, a bone of the palate, and the dental morphology is similar to that of other brachyopoids. When viewed from the side, the upper margin of the jaw appears concave.
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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