Who became extinct? In addition to the non-avian dinosaurs, vertebrates that were lost at the end of the Cretaceous include the flying pterosaurs, and the mosasaurs, plesiosaurs and ichthyosaurs of the oceans .
The other lineages of "marine reptiles", such as the ichthyosaurs, plesiosaurs, and mosasaurs, also were extinct by the end of the Cretaceous, as did the flying ... |
Things like Diplodocus and Stegosaurus. Those seem to go extinct or at least decline in the Early Cretaceous and they're replaced by iguanodontians and ... |
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