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Sunday, 28 September 2008
Tuesday, 9 September 2008
DINOSAURS VS. CROCODILIAN UPSTARTS -- A BATTLE FOR SURVIVAL
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Dinosaurs, long hailed as the rulers of the Triassic almost lost the title belt to a group of crocodilian upstarts, the crurotarsans. In a short lived battle for survival, geologically speaking, the two groups ran head to head for about thirty million years. The Crurotarsi or "cross-ankles" as they are affectionately known, are a group of archosaurs - formerly known as Pseudosuchians when paleontologist Paul Serono renamed them for their node-based clade in 1991
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