Describes what is known about four different kinds of dinosaurs that lived in parts of the United States millions of years ago.
- ISBN10 156065287X
- ISBN13 9781560652878
- Publish Date 1 September 1995 (first published 1 December 1931)
- Publish Status Out of Print
- Out of Print 23 June 2021
- Publish Country US
- Imprint Capstone Press
- Format Hardcover
- Pages 48
- Language English