At head of title: American Museum of Natural History. "... based on the fossil halls at the American Museum of Natural History ... the fossil record of backboned life"--A note from a paleontologist, Dr. Mark A. Norell, page [4].
Summary:
Meet some amazing prehistoric creatures that weren't dinosaurs.
This resource is supported by the Institute of Museum and Library Services under the provisions of the Library Services and Technology Act as administered by State Library of Iowa.