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Parasuchus : ウィキペディア英語版
Parasuchus

''Parasuchus'' is an extinct genus of phytosaur known from the Late Triassic (late Carnian to early Norian stage) of Andhra Pradesh and Madhya Pradesh, India. It contains a single species, ''Parasuchus hislopi''.〔
==Discovery==
''Parasuchus'' was first described on the basis of a chimeric material - a rhynchosaurian basicranium mixed with phytosaurian partial snout, scutes and some teeth. The partial premaxillary rostrum (snout), GSI H 20/11, was chosen as the lectotype of ''Parasuchus hislopi''. GSI H 20/11 was collected from the Lower Maleri Formation (Pranhita–Godavari Basin), near the Maleri village of Adilabad district, Andhra Pradesh. Later, Sankar Chatterjee (1978) described many complete remains from the Lower Maleri Formation, as well as one nearly complete skull form the Tiki Formation, that he assignated to ''Parasuchus hislopi''. Two complete and articulated skeletons that include complete skulls were collected in the vicinity of the Mutapyram village of Adilabad district. Both individuals were roughly in length, lying side by side. The left individual, ISI R 42, is perfectly preserved, and was designated as the neotype of the species following the suggestion of Chatterjee (2001). The rostrum of the right individual, ISI R 43, is the only missing part of its skeleton.〔 In the presumable gastric contents of these two skeletons, two articulated and almost complete skeletons of ''Malerisaurus robinsonae'' (both designated as ISIR 150), a basal archosauromorph, were found. From the same locality as the neotype, three isolated conjoined basioccipital/basisphenoids (ISI R 45-47) were also recovered. A couple of miles north of that locality, near the Venkatapur village, two more excellently preserved skulls were found. ISI R 160 represents an isolated but nearly complete skull, while ISI R 161 represents partial skull and articulated postcranial remains.〔 Finally, the skull recovered from the ''Tikisuchus'' holotype site of the Tiki Formation (Gondwana Group), about 4 miles west of Tiki village of Shadol District, Madhya Pradesh, is missing only the end of the snout and the squamosal. As the lectotype of the genus, it was found nearby ''Paradapedon'' remains.〔 Both formations date to the late Carnian to early Norian stage of the Late Triassic period, about 222.5-212 million years ago.〔

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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