Here's a place to post interesting artist impressions of prehistoric creatures and environments. Timeframe doesn't matter, anything from the precambrian to holocene, as long as it's already extinct. Have fun.
Thunder Thighs dinosaur? Paleontologists actually name dinosaur for its gams
Thunder Thighs dinosaur: The elephant-sized Brontomerus – Greek for 'thunder thighs' – lived about about 110 million years ago, and had a powerful kick