Ichthyosaur

Ichthyosaurs were giant marine reptiles that resemble a dolphin with large teeth.

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They lived during a large part of the Mesozoic era, and appeared about 250 million years ago (Ma), slightly earlier than the dinosaurs (230 Ma); and disappeared about 90 Ma, about 25 million years before the dinosaurs became extinct.

For more information about the topic Ichthyosaur, read the full article at Wikipedia.org, or see the following related articles:

Jurassic — The Jurassic period is a major unit of the geologic timescale that extends from about 200 Ma (million years ago) at the end of the Triassic to 146 Ma ... > read more

Mesozoic — The Mesozoic Era is one of three geologic eras of the Phanerozoic eon. The Mesozoic includes three geologic periods: from oldest to youngest, they ... > read more

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