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Biology 8 Online
OpenStudy (quickstudent):

Ichthyosaurs went extinct at the end of the: a. Triassic Period b. Permian Period c. Jurassic Period d. Cretaceous Period

OpenStudy (quickstudent):

I think it is c.

OpenStudy (deepika.comet):

its in late cretaceous period

OpenStudy (quickstudent):

Oh, ok. Thanks

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