Amelia Zietlow Identifies 40-Foot Mosasaur Species Tylosaurus rex

1 articles · Updated · Fox11online.com · May 27

Findings published last Thursday identify Tylosaurus rex as a new mosasaur species led by Appleton museum specialist Amelia Zietlow, based on fossils found mostly in Texas and dating to about 80 million years ago.
Skull adaptations drove the classification: the animal appears to have had larger jaw muscles, serrated teeth and a second row of teeth on the roof of its mouth for gripping slippery prey.
The largest known specimens are estimated at about 40 feet long, and the biggest skull in the dataset is roughly as tall as Zietlow, underscoring the scale of the marine lizard.
A replica skull is now on display at History Museum at the Castle in Appleton, where Zietlow's team has also worked with Path of Titans game creators to visualize the species.

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