As I said earlier, most of the collections in the museum are carefully stored in cabinets and you will have get permission to access them. Access is available if you become part of a paleontology group, or through other organizations. Here are the links to over 4.75 million fossil specimens kept in the American Museum alone.It is an excellent museum, however good specimens often remain in working labs. Ring the museum--I know if I do, I will be less than trusted, and ask re: percentages. Or you see more at these resources:
https://www.quora.com/When-you-see-...ld-are-they-real-bones-held-together-by-wires
Which exhibits in a museum are genuine?
Collections