A fossilized dinosaur limb bone is prepared in the paleontology laboratory of Monash University, Australia by Leslie Kool. Preparation involves the removal of the fossil from the rock matrix, in which it is embedded, using a fine-tipped drill. Fossils are normally removed from the field with a substantial portion of rock or plaster around them. This allows the removal to be performed slowly and carefully, avoiding damage to the sample, and any required preservation work to be made. This fossil was found near Dinosaur Cove in southern Australia, the first mining operation specifically for the purpose of fossil hunting. .