InGen Database Description
The Cleveland Lloyd Dinosaur Quarry is famed for being one of the most productive fossil-bearing areas for Jurassic finds. It is situated in the San Rafael Swell near Cleveland in Utah. It was declared a National Natural Landmark in October 1965. The quarry was first discovered by animal herders during the late 19th century, but it wasn't until 1927 that a team from University of Utah sent an expedition to recover some 800 bones.
The quarry is part of the larger Morrison Formation and consists of mudstone from a river system. It is believed to be a predator trap, with dinosaurs becoming trapped in the thick mud and creating a great accumulation of remains. However, other theories contend that a drought, or other disaster was the cause for such a mass grave,.
A diverse range of remains have been recovered from the quarry including plants, gastropods, chordata and dinosaurs.