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A 72,000,000 year old 16 foot long tail of a dinosaur was found in the northern part of Mexico.
The dinosaur, a duckbilled or hadrosaur, is basically the prehistoric form of cattle. They roamed the forest & plains of North America, Europe and Asia in herds of up to a thousand. They communicated by funneling blasts of air through their large, ornate crests on their heads.
With their vast numbers, there are over 32 hadrosaur subspecies.
images courtesy of Reuters.
A comparison of Sinornithosaurus skulls - the original 'venomous' interpretation (bottom) and the 'corrected' interpretation (top). From the Paläontologische Zeitschrift paper.
In the American Museum of Natural History’s Hall of Saurischian Dinosaurs, there is a great fossil mismatch. You can find the deceptive pairing in the Apatosaurus exhibit. Set in the floor behind the enormous dinosaur is a set of trackways—the Apatosaurus is posed as if the skeletal sauropod has just left the tracks behind. But there is no way that Apatosaurus left those tracks. The footprints and the long-necked dinosaur on display were separated by tens of millions of years.
