MammalQuaternary
Woolly mammoth
The woolly mammoth was comparable in size to today's elephants.
Meet Woolly mammothExplore the prehistoric world
Prehistoric mammals
Small early relatives and unmistakable giants. Discover the extinct mammals and mammal relatives represented in Dinosgacha.
84creatures in this group
3 game stages each
3 game stages each
Browse by group
Meet the collection
Showing 1–24 of 84 creatures
Mammal
MammalQuaternary
Smilodon
Although it is called the "saber-toothed tiger," it was not a close relative of the modern tiger.
Meet Smilodon
MammalQuaternary
Woolly rhinoceros
In England, a Paleolithic human figure was found engraved on one of its ribs.
Meet Woolly rhinoceros
MammalNeogene / Quaternary
Megatherium
It was a giant ground sloth and a relative of today's small sloths.
Meet Megatherium
MammalNeogene / Quaternary
Glyptodon
Its shell is reminiscent of that of a turtle, but that similarity appeared in very different lineages.
Meet Glyptodon
MammalQuaternary
Megaloceros
Its closest living relatives are fallow deer.
Meet Megaloceros
MammalPaleogene
Paraceratherium
Despite being related to rhinos, this enormous animal did not have horns.
Meet Paraceratherium
MammalQuaternary
Arctodus
The large Arctodus simus is interpreted as an omnivore, rather than an exclusive specialized hunter.
Meet Arctodus
MammalNeogene / Quaternary
American mastodon
Its molars had ridges different from the tooth surfaces of elephants and mammoths.
Meet American mastodon
MammalQuaternary
Dire wolf
The largest collection of its fossils comes from the tar pits of Rancho La Brea in Los Angeles.
Meet Dire wolf
MammalPaleogene
Andrewsarchus
The specimen that gave rise to its name is a large skull discovered in 1923.
Meet Andrewsarchus
MammalPaleogene
Arsinoitherium
It had a pair of large horns on its snout.
Meet Arsinoitherium
MammalPaleogene
Uintatherium
Its long canine teeth did not make it a meat-eater: it ate plants.
Meet Uintatherium
MammalPaleogene
Embolotherium
It could reach about 2.5 meters in height at the withers.
Meet Embolotherium
MammalPaleogene
Megacerops
Their horns were larger in males than in females, an example of sexual dimorphism.
Meet Megacerops
MammalQuaternary
Doedicurus
Some cracks in fossil armor have been linked to tail blows from other animals in this group.
Meet Doedicurus
MammalNeogene / Quaternary
Toxodon
Its scientific name is also written as “toxodonte” in Spanish.
Meet Toxodon
MammalNeogene / Quaternary
Macrauchenia
The best known species is Macrauchenia patachonica.
Meet Macrauchenia
MammalNeogene
Chalicotherium
It ate plants and had long claws on its front feet.
Meet Chalicotherium
MammalNeogene
Moropus
Its name means "slow foot", although the name alone does not demonstrate its speed.
Meet Moropus
MammalQuaternary
Procoptodon goliah
Procoptodon goliah was the largest known kangaroo, although other species of the genus were much smaller.
Meet Procoptodon goliah
MammalQuaternary
Diprotodon optatum
It was related to today's wombats and koalas.
Meet Diprotodon optatum
MammalNeogene / Quaternary
Thylacoleo carnifex
The so-called "marsupial lion" belonged to a different lineage than lions and other felines.
Meet Thylacoleo carnifex
MammalNeogene
Thylacosmilus
Its saber teeth appeared in a different lineage than felines.
Meet ThylacosmilusA closer look at prehistoric mammals
This browsing group brings together the catalogue’s mammals and mammaliaforms. Mammaliaform is a broader label that includes early relatives outside some definitions of modern mammals; each profile keeps its own classification.
Prehistoric mammals span very different periods and environments. Check the individual profile before placing a creature in the Ice Age, alongside dinosaurs, or in the same habitat as another companion.
Does prehistoric mammal always mean Ice Age animal?
No. The collection includes mammals and early relatives from different parts of prehistory. The period shown on each profile gives more useful context than treating all extinct mammals as one Ice Age community.
AI-generated, stylized game illustrations. These designs and growth stages are imaginative, not scientific reconstructions. Open a profile for its fossil information and sources.