UGS paleontologist Scott Madsen cutting the plaster jacket off of the bottom of a block from the Stikes Utahraptor excavation. This roughly 1,000 lb block, dubbed “The Mushroom”, and containing the remains of Iguanodont and Utahraptor dinosaurs, was collected from on top of the large 18,000 lb. block of dinosaur fossils that was dragged off of a mesa in eastern Utah in the fall of 2014.

Scott Madsen begins the preparation of “The Mushroom” in the UGS paleontological laboratory.