1-2 of about 2 matches for site:www.amnh.org nearby jurassic
https://www.amnh.org/explore/ology/ology-cards/260-ghost-ranch-new-mex...
dinosaurs. The lowest layer holds fossils from the: Cretaceous Period (145-65 mya) Jurassic Period (200-145 mya
https://www.amnh.org/explore/ology/ology-cards/270-sterling-nesbitt
earliest ones were relatively small. Larger dinosaurs were more common in the later Jurassic Period. Fact or Fiction