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See also:OREODON (i.e. " hillock-tooth ") , the name of an Oligocene genus of See also:North See also:American See also:primitive ruminants related to the camels, and typifying the See also:family Oreodontidae . Typical oreodonts were See also:long-tailed, four-toed, partially plantigrade ruminants with See also:sharp-crowned crescentic molars, of which the upper ones carry four cusps, and the first See also:lower premolar canine-like both in shape and See also:function . In the type genus there are See also:forty-four See also:teeth, forming an uninterrupted See also:series . The vertebral artery pierces the See also:neck-vertebrae in the normal manner . The name See also:Oreodon is preoccupied by Orodus, the designation of a genus of Palaeozoic fishes, and is likewise antedated by Merycoidodon, which is now used by some writers . See See also:TYLOPODA . |
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