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CARCHARODONTOSAURUS

a meat-eating shark-toothed theropod dinosaur from the Late Cretaceous of North Africa.
Carcharodontosaurus
Pronunciation: kar-KA-ro-DON-toe-SOR-us
Meaning: Shark-toothed lizard
Author/s: Stromer (1931)
Synonyms: See below
First Discovery: Bahariya, Egypt
Chart Position: 124

Carcharadontosaurus saharicus

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(Shark-toothed lizard from the Sahara)Etymology
Carcharodontosaurus is derived from "Carcharodon" (Greek "karkharo" jagged and "odon" tooth), the shark genus that includes the Great White (Carcharodon carcharias) and maybe the extinct Megalodon (Carcharodon megalodon), and the Greek "sauros" (lizard), so named because of its shark-like teeth.
The species epithet, saharicus, refers to its discovery in the Sahara desert.
Discovery
The first remains of Carcharodontosaurus saharicus were discovered by R. Markgraf in the Bahariya Formation, 2km from Ain Gedid on the western face of Gebel Harra, Egypt, in 1914, and when Stromer described them in 1931 he noticed the same characteristics in a couple of teeth (BSP 1922 X-46) that Charles Depéret and J. Savornin found in Algeria in 1924. The latter authors had named these teeth Megalosaurus saharicus in 1925 and later referred them to Dryptosaurus. However, Stromer realised that all of these remains represented a hitherto unknown theropod dinosaur that he named Carcharodontosaurus, though he did the honourable thing and retained the previous epithet. Unfortunately, the original remains (holotype BSP 1922 X-46), including a partial skull, teeth, vertebrae, claw bones and assorted hip and leg bones were all destroyed during WWII allied bombing raids on Munich in 1944. But Sereno found a very large, nearly complete skull (SGM Din-1) in the Kem Kem Formation of Morocco's Sahara Dessert in 1995 that was designated as neotype. Further remains from the Echkar Formation of Niger were assigned to a second species, Carcharodontosaurus iguidensis, by Stephen Brusatte and Paul Sereno in December 2007 based on its more modest size and features of its upper jaw and braincase.
Estimations
Timeline:
Era: Mesozoic
Epoch: Late Cretaceous
Stage: Cenomanian
Age range: 99-94 mya
Stats:
Est. max. length: 12 meters
Est. max. hip height: 4 meters
Est. max. weight: 6.5 tons
Diet: Carnivore
Synonyms
Megalosaurus saharicus (Depéret and Savornin, 1925)
Megalosaurus africanus (von Huene, 1956)
References
• E. Stromer (1931) "Results of the Research Expedition of Prof. E. Stromer in the Egyptian Desert".
• Oliver W. M. Rauhut (1995) "The Systematic Position of the African Theropods Carcharodontosaurus Stromer 1931 and Bahariasaurus Stromer 1934".
• Brusatte, S.L. and Sereno, P.C. (2007) "A new species of Carcharodontosaurus (dinosauria: theropoda) from the Cenomanian of Niger and a revision of the genus."
• Larsson, H.C.E. 2001 "Endocranial anatomy of Carcharodontosaurus saharicus (Theropoda: Allosauroidea) and its implications for theropod brain evolution".
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To cite this page:
Atkinson, L. "CARCHARODONTOSAURUS :: from DinoChecker's dinosaur archive".
›. Web access: 27th Mar 2017.
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