American Museum of Natural History

This cast of a juvenile sauropod is 122 feet long! The species, Patagotitan mayorum, was discovered in 2014 in Argentina.

This extinct shark’s name means “big tooth.” Fun fact: its bite was stronger than T. rex’s!

One of the largest carnivores ever, T. rex was discovered on a Museum expedition. This mount has been on view since 1915.

This famous horned dinosaur, a plant eater, replaced its 144+ teeth two to four times a lifetime.

This giant ground sloth, an extinct mammal from South America called Lestodon, is “armored” due to bony plates in its...

Larger than its woolly relative, this extinct pachyderm lived in Indiana about 11,000 years ago.