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Predatory Dinosaurs from the Sahara and Late Cretaceous Faunal Differentiation
Paul C. Sereno, Didier B. Dutheil, M. Larochene, Hans C. E. Larsson, Gabrielle H. Lyon, Paul M. Magwene, Christian A. Sidor, David J. Varricchio and Jeffrey A. Wilson
New Series, Vol. 272, No. 5264 (May 17, 1996), pp. 986-991
Published by: American Association for the Advancement of Science
Stable URL: http://www.jstor.org/stable/2889583
Page Count: 6
You can always find the topics here!Topics: Bones, Femur, Spine, Fossils, Skull, Foot bones, Dinosaurs, Skeleton, Predators, Fauna
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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.
Science © 1996 American Association for the Advancement of Science