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OpenStudy (quickstudent):
Ichthyosaurs went extinct at the end of the: a. Triassic Period b. Permian Period c. Jurassic Period d. Cretaceous Period
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OpenStudy (quickstudent):
I think it is c.
OpenStudy (deepika.comet):
its in late cretaceous period
OpenStudy (quickstudent):
Oh, ok. Thanks
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