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Common feature of Ichthyosaurus and Tyrannosaurus

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Large marine reptiles which are extinct

Large fishes which are extinct

Large marine reptiles which are presently found in marine water

Large reptiles which are extinct

answer is D.

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Some land reptiles went back into water and evolved into fish like reptile, probably 200 mya e.g. Icthyosaurs. Tyrannosaurus rex with fearsome dagger like teeth dominated the land. Both gigantic reptiles became extinct about 65mya

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