The Late Cretaceous Sea

the Tylosaurs

from the Dinosaur Collector

There are at least 3 species of Tylosaurs. Tylosaurs were large-bodied marine lizards armed with sturdy, conical teeth and an elongated premaxilla and extensions of the dentaries that do not bear teeth to the very end such as is found in other genera of mosasaurs. They were not among the fastest swimming nor the strongest mosasaurids. Tylosaurus reached lengths of 9-15+ meters. Hainosaurus a large tylosaur may be a subspecies of Tylosaurus. It is assumed mosasaurs did not return to land even to lay eggs.

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Tylosaurus

Tylosaurus (Knot Lizard) lived in the Niobara sea during Late Cretaceous North America. It was 20 to 40 feet (6 to 12m) long and had a long, slim body. It had huge jaws; sharp, cone-like teeth, and flipper-like hands and feet. It was a savage hunter and ate fish, shellfish, other sea reptiles and was one of the largest mosasaurs.

Tylosaurus from UHA Dino Tales and two Elasmosaurus from the Retro Classic collection.

Tylosaurus (Swollen Lizard) was, at over 45 feet, one of the largest of the three types of mosasaurs.  It lived in the vast Western Interior Seaway alongside several other species of mosasaurs, including the familiar Platecarpus and Plioplatecarpus.

Tylosaurus from CollectA.

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