this was discovered in the 1970's by lance erickson. skull we havehe is the lacrimal bone. and filledetely thin with structures. bones a mammal goal, the do not fuse. you typically find them in little pieces. the brain case. condyle.he occipital this is the foramen magnum. here is the top of the skull. you are looking at the sides of the brain case. it is a little squished, but brain cases are the jewels we look for. you can tell where the cranial nerves are exiting, the different portions of the brain that are large. the most common dinosaurs in the grand valley are apatosaurus and of the mostone common predators in the jurassic. oodles of their teeth. they have serrations on both sides. think of a double steak knife going through your porterhouse like butter. they are compressed along the outside edges of the skull, fatter at the front. we will occasionally find them with the roots. most of the teeth are broken at the root, meaning the animal shed teeth during feeding. they are not like humans with an adult set. you only get the teeth with roots when they fall out of the

by the1970's, first curator, lance erickson. we have this part of the skull. bone.s the lachrymonal it is completely thin and filled with these structures. it is a very lightweight element. mammal skull, when you find the bones of the skulls you find them in pieces. you can find the brain case. this is the brain case. veretebral the skeleton. here is the top of the skull. here you're looking at the dies of -- sides of the brain case. it's a little squished, but of theases are one jewels that paleontologist look for because you can tell a lot about how the brain was wired. where the nerves exiting the brain? common dinosaurs in the grand valley are apatosaurus and allosaurus. we find oodles of their teeth. they have these compressed, sharp, steak-knife teeth. they have serrations on both side. cuts like butter. so, they are compressed along the outside edges of the skull and fatter at the front of the skull. we occasionally will find it with the roots still on them. most of the teeth we find are broken at the root. which means the animals shed its teeth. they r