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Eonatator (Nobu Tamura)


Eonatator (Greek for "dawn swimmer"); pronounced EE-oh-nah-tay-tore


Oceans of North America

Historical Period:

Middle-Late Cretaceous (90-75 million years ago)

Size and Weight:

About 10 feet long and a few hundred pounds


Probably fish

Distinguishing Characteristics:

Small size; slender body


About Eonatator:

As is the case with many mosasaurs--the marine reptiles that succeeded plesiosaurs and pliosaurs as the scourges of the world's oceans during the late Cretaceous period--the exact taxonomy of Eonatator is still being puzzled out by experts. Once thought to be a species of Clidastes, and then of Halisaurus, Eonatator is now believed to have been one of the earliest mosasaurs, and suitably small (10 feet long and a few hundred pounds, max) for the progenitor of such a fearful race.

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