This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Osteology of the carnivorous Dinosauria in the United States National museum Page BHL. Osteology of the carnivorous Dinosauria in the United States National museum with special reference to the genera Antrodemus Allosaurus and Ceratosaurus Page Text Illustration biodiversitylibrary org title Gilmore Charles NOTINCOPYRIGHT