Sereno PC, Dutheil DB, Iarochene M, Larsson HCE, Lyon GH, Magwene PM, Sidor CA, Varricchio DJ, Wilson JA
P. C. Sereno, H. C. E. Larsson, P. M. Magwene, C. A. Sidor, J. A. Wilson, Department of Organismal Biology and Anatomy, University of Chicago, 1027 East 57th Street, Chicago, IL 60637, USA. D. B. Dutheil, 48 rue de la Rochefoucauld, 75009 Paris, France. M. Iarochene, Ministere de l'Energie et des Mines, Rabat, Morocco. G. H. Lyon, 3551 Carter Hill Road, Montgomery, AL 36111, USA. D. J. Varricchio, Old Trail Museum, Post Office Box 919, Choteau, MT 59422, USA.
Science. 1996 May 17;272(5264):986-91. doi: 10.1126/science.272.5264.986.
Late Cretaceous (Cenomanian) fossils discovered in the Kem Kem region of Morocco include large predatory dinosaurs that inhabited Africa as it drifted into geographic isolation. One, represented by a skull approximately 1.6 meters in length, is an advanced allosauroid referable to the African genus Carcharodontosaurus. Another, represented by a partial skeleton with slender proportions, is a new basal coelurosaur closely resembling the Egyptian genus Bahariasaurus. Comparisons with Cretaceous theropods from other continents reveal a previously unrecognized global radiation of carcharodontosaurid predators. Substantial geographic differentiation of dinosaurian faunas in response to continental drift appears to have arisen abruptly at the beginning of the Late Cretaceous.
在摩洛哥的凯姆凯姆地区发现的晚白垩世（森诺曼阶）化石包括大型食肉恐龙，这些恐龙生活在非洲大陆逐渐漂移至地理隔离状态的时期。其中一种以一个长约1.6米的头骨为代表，是一种先进的异特龙类，可归入非洲的鲨齿龙属。另一种以一具比例细长的部分骨骼为代表，是一种新的基础虚骨龙类，与埃及的巴哈利亚龙属非常相似。与其他大陆的白垩纪兽脚类恐龙进行比较后发现，鲨齿龙科食肉动物此前未被认识到的全球扩散现象。晚白垩世初期，恐龙动物群因大陆漂移而出现的显著地理分化似乎是突然发生的。
