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Shaochilong
''Shaochilong'' (meaning "shark toothed dragon") is a genus of carcharodontosaurid dinosaur from the mid Cretaceous (Turonian stage) Ulansuhai Formation of China (about 92 million years ago). The type species, ''S. maortuensis'', was originally named ''Chilantaisaurus maortuensis'', but was re-described and reclassified in 2009.
==Discovery and subsequent analysis==
The holotype, IVPP V2885.1-7, consisting of skull fragments, axis and six caudal vertebrae associated to a single individual is the only known specimen. This specimen was discovered in Outer Mongolia and described by Hu in 1964 as a species of ''Chilantaisaurus''.〔Hu, S.-Y. (1964). "Carnosaurian remains from Alashan, Inner Mongolia." ''Vertebrata PalAsiatica'', 8: 42–63. (Chinese, with English summary )〕 Chure (2002) and Rauhut (2001) suggested that it did not belong to that genus, and was probably a primitive coelurosaur. However, a re-description by Brusatte and colleagues in 2009 found that it was in fact a carcharodontosaurid, the first recognized from Asia.〔Brusatte, S., Benson, R., Chure, D., Xu, X., Sullivan, C., and Hone, D. (2009). "The first definitive carcharodontosaurid (Dinosauria: Theropoda) from Asia and the delayed ascent of tyrannosaurids." ''Naturwissenschaften'', 96(9): 1051-1058. PMID 19488730〕 The genus was originally informally named "Alashansaurus".〔Glut, D. (2003). ''Dinosaurs - The Encyclopedia - Supplement 3''. McFarland Press: Jefferson, NC.〕
IVPP V2885.1 was probably adult or nearly adult individual. Its length – based on the length of the maxillary tooth row – is estimated of . Estimated length of the femur is 61.5 cm, what suggests that whole animal weighted approximately .
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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