Illustrationart Hats
Description: In the Late Cretaceous the world was filled with giant predators, both on land and in the sea. While T. rex was stalking the land looking for its next kill, the seas were brimming with millions of sharp, pointed, teeth, just looking for something to sink themselves into. Some of the largest of those teeth belonged to the Mosasauridae superfamily, a group of mostly huge marine reptiles who’s remains have been found around the world. This group contains some 38 separate genera spanning from 101 to 66 million years ago, all of which shared some overarching traits; for instance, all of them possessed long lizard-like forms with paddle shaped front and back limbs and crescent shaped tails like those of sharks.
Description: Yutyrannus huali lived in what is now China during the Early Cretaceous (124.6 million years ago). An early relative to the famed T.rex, it is known from three nearly complete fossil skeletons that were found together and show a surprising amount of detail, including the presence of a feathered covering over most of their bodies. At adulthood Y. huali measured at around 29.5 feet in length and weighed in at about 1.2 tons, making it the largest dinosaur yet discovered with direct evidence of feathers.
