User:John Troodon/Archive1

=Cleveland Lloyd Quarry= About 155 million years ago, in the Late Jurassic the territory of what is now Cleveland Lloyd Dinosaur Quarry was a freshwater lake bed. Multiple species came to drink here (ref 1). And they got stuck.

It was a time of drought, and the water levels in the lake shrank very rapidly. The upper layer of mud was left hard, but the lower, became wet and sticky. The weight of the dinosaurs causes them to break the upper crust, and that's when they become mired in mud. It is also called a "predator trap".