Paramylodon harlani is an extinct genus of Ground Sloth of the family Mylodontidae endemic to North America during the Pliocene through Pleistocene epochs, living from around ~4.9 Mya–12,000 years ago.
Ichthyosauria (Ancient Greek for fish lizard) is an order of large extinct marine reptiles sometimes referred to as “ichthyosaurs,” although the term is also used for wider clades that the order resides in.
Iguanodon or Iguanodon bernissartensis, was an early Cretaceous dinosaur. A massive herbivore with a horny beak and cheek teeth for grinding vegetation.
Maiasaura lived in herds and it raised its young in nesting colonies. The nests in the colonies were packed closely together. The nests were made of earth and contained 30 to 40 eggs laid in a circular or spiral pattern. The eggs were about the size of ostrich eggs.
Pterodaustro guinazui has a very elongated skull, up to 29 centimeters long. The portion in front of the eye sockets comprises 85 percent of skull length.
It is one of the most famous prehistoric mammals and the best known Saber-tooth Cat. Although commonly known as the Saber-toothed Tiger, it was not closely related to the tiger or other modern cats. Smilodon lived in the Americas during the Pleistocene epoch (2.5 Mya – 10,000 years ago).
Nothrotheriops is a genus of Pleistocene ground sloth found in North America, from what is now central Mexico to the southern United States. This genus of bear-sized xenarthran was related to the much larger, and far more famous Megatherium.