8 Prehistoric Animals That Are NOT Dinosaurs

The entelodon resembles a cross between a warthog and a pig when it is seen.

Entelodon

These strange-looking animals were mammals that shared characteristics with armadillos and tortoises.

Glyptodon

This enormous, elephant-like monster lived during the Pleistocene era.

Mastodon

The Megalodon, a gigantic animal that resembled a great white shark, is most likely descended directly from the kind that exists today.

Megalodon

It is a sea species, and reptiles with large jaws and short necks, like Monsters, were used to devour their prey.

Mosasaurs

They belonged to the Phorusrhacidae family and were referred to as "terror birds" informally.

Phorusrhacos Longissimus

The smilodon, also called the saber-toothed tiger, is an extinct species that resembled a tiger or cat but was unrelated to contemporary cats.

Saber-Toothed Tiger

Students from the University of Florida and the Smithsonian Tropical Research Institute made the discovery in Colombia in the early 2000s.

Titanoboa