Thread:SmutAuthor97/@comment-27950421-20190321142347/@comment-27950421-20190326033642

Deinonychus is the actual dinosaur the JP raptors are based off of. They were discovered at around the same time as the velociraptor and the original paper on Deinonychus actually had them under the name Velociraptor, since the paleontologists involved were unaware of the Mongolian discovery. Michael Chriton was in contact with the guy writing the original paper and used that information for his book.

That's why the velociraptors in the movie are larger and why Allan Grant was digging Velociraptor fossils in Montana and not Mongolia.