Dinosaurs
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Dinosaur is the name of large extinct reptiles of the Mesozoic Era,
during which they were the dominant land animals on Earth. The term was
proposed as a formal zoologic name in 1842 by the British anatomist Sir Richard
Owen, in reference to large fossil bones unearthed in southern England. The
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.... be
identified from their fossil remains, and some identifications are in dispute.
They ranged in weight from 4 to 6 lb., in the case of the compsognathus, and up
to 160,000 lb., in the case of the brachiosaurus. Most dinosaurs were large,
weighing more than 1,100 lb., and few weighed less than 100 lb. Most were
herbivores, but some saurischians were carnivorous. The majority were four-
footed but some ornithischians and all carnivores walked on their hind legs.
Always classified as reptile ....
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