Jurassic

(jo̵̅o̅ rasik, jo̵o-)

adjective

designating or of the second geologic period of the Mesozoic Era, characterized by the breakup of Laurasia and Gondwana and the development of giant dinosaurs and the first birds

Origin: Fr jurassique, after Jura Mountains

See Jurassic in American Heritage Dictionary 4

adjective
Of or belonging to the geologic time, rock series, or sedimentary deposits of the second period of the Mesozoic Era, in which dinosaurs continued to be the dominant land fauna and the earliest birds appeared. See Table at geologic time.
noun
The Jurassic Period or its system of deposits.

Origin:

Origin: French jurassique

Origin: , after the Jura (Mountains)

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