Summarized by Plex Health
Last Updated: 09 May 2022
varanoid tooth eruption and implantation modes in a late cretaceous mosasaur. "varanoid tooth eruption and implantation modes in a late cretaceous mosasaur.", by Liu M, Reed DA, Cecchini GM, Lu X, Ganjawalla K, Gonzales CS, Monahan R, Luan X, Diekwisch TG. F1: Replacement tooth position in a fossil Mosasaur jaw fragment from central Texas. (A,D) are macrographic images of the intact fragment, (B,C,E,F) are ultrathin ground sections, (G,H) are 3D-reconstructions of stacked tomographs highlighting individual tooth...

Mosasaurs are a group of aquatic lizards that would have resided in the Badlands area from about 75-69 million years ago. The contemporary loved ones of mosasaurs are snakes and monitor lizards, both of which survive land. When mosasaurs advanced from a terrestrial way of living to a marine one, they created webbed paddles for swimming. Early mosasaur ancestors probably weren't totally marine like a true mosasaur, it's likely that they fed in superficial seaside waters, only going back to land for relaxing and breeding like iguanas do today. Their ranges were slightly smaller than those of the pasture rattlesnake, an animal which stays in Badlands National Park today. By the end of the Cretaceous Period, some mosasaurs had even adjusted to freshwater environments.

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