The following list includes many animals extinct since the pleistocen age. Some of them are very similar to cryptids descriptions. For example, Big Foot to Gigantopithecus Blacki, Loch Ness monster to the Rodhocetus Balochistanensis and Thunderbird to the Teratorns.

See a picture here
Andrewsarchus	Bulldog Bear

Platybelodon	Gigantopithecus blacki

Columbian Mammoth	Ornimegalonyx oteroi

Diatryma gigantea	Dinohyus

Chalicotherium	Coelodonta antiquitatis

Megatherium	Diprotodon optatum
	See a picture here
Dire Wolf	Doedicurus
See a picture here
Gastornis	Procoptodon goliah

Giant Rhinoceros	Giant Beaver

Thylacoleo carnifex	Giant guinea pig

Rodhocetus Balochistanensis	Teratorns

	Uintatherium

Zeuglodon	Megalania Prisca

Archaeoceti	Carcharocles megalodon

Mosasaur	Stethacanthus

Gallery of extinct animals