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''Lutungutali'' (meaning "high hip" in the Bemba language) is an extinct genus of silesaurid dinosauriform from the Middle Triassic of Zambia. The single type species of the genus is ''Lutungutali sitwensis''. ''Lutungutali'' was named in 2013 and described from a fossil specimen, holotype NHCC LB32, including hip bones and tail vertebrae. The specimen was collected in 2009 from the upper Ntawere Formation, which dates to the Anisian stage of the Middle Triassic. ''Lutungutali'' is the first known silesaurid from Zambia and, along with the Tanzanian silesaurid ''Asilisaurus'' and dinosauriform ''Nyasasaurus'', the oldest bird-line archosaur known from body fossils (i.e. parts of the skeleton). ==Description== ''Lutungutali'' is known from parts of its pelvis and from four caudal vertebrae that make up the base of the tail. These bones represent one individual, although bones that may belong to ''Lutungutali'' representing eight other individuals were collected from the same fossil site in 2011. ''Lutungutali'' shares the following three features (synapomorphies) with other early dinosauriforms: * A small area over which the pubis and ischium bones of the hip connect. * A depression or fossa on the ischium where it connects with the pubis and ilium. * The length of the ischium exceeding the length of the iliac blade across the top of the hip. ''Lutungutali'' also shares two synapomorphies with the clade or evolutionary grouping containing silesaurids and dinosaurs: * A crest of bone extending upward from the supraacetabular crest (a bony ridge above the acetabulum or hip socket) that joins with the preacetabular process, the forward-most projection of the iliac blade. * A lengthy connection between the two pairs of ischia, except for a division of the two bones near their connection with the rest of the hip. In addition, it shares two synapomorphies with other silesaurids: * A straight lower margin of the hip socket on the ilium (more basal dinosauriforms have a convex margin, and dinosaurs have a concave margin). * The lack of a ridge of bone behind the hip socket called the antitrochanter. ''Lutungutali'' has one unique feature or autapomorphy that distinguishes it from all other dinosauriforms: an iliac blade that is taller than the portion of the ilium that forms the hip socket. This feature is references in its name, which means "high hip" in the Bemba Language.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Lutungutali」の詳細全文を読む スポンサード リンク
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