The dinosaurs and their pterosaur cousins dominated land environments in the Jurassic and Cretaceous periods, while other groups of giant reptiles such as plesiosaurs, ichthyosaurs, and mosasaurs dominated ocean life. A mass extinction at the end of the Cretaceous period killed off all the large reptiles, among many other kinds of organisms both on land and in the sea. One group of small dinosaurs – the birds – and the mammals survived the extinction and have diversified into nearly every habitat. Learn about the life from the Age of Dinosaurs to present in this film from the fourth of four theaters at the Museum of the Ithaca in Ithaca, NY. The film was narrated by Frank Rhodes, paleontologist and President of Cornell University from 1977 to 1995.
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