Prehistoric Mammals



Adelobasileus

Adelobasileus Prehistoric Mammal

Fossil Site: Woodlands of North America
Time Period:
Diet: Insects
Size:5 inches long and a few ounces

Eozostrodon

Eozostrodon Prehistoric Mammal

Fossil Site: Woodlands of Western Europe
Time Period:
Diet: Insects
Size:5 inches long and a few ounces

Palaeocastor

Palaeocastor Prehistoric Mammal

Fossil Site: Woodlands of North America
Time Period: Late Oligocene (25 million years ago)
Diet: Herbivore
Size:one foot long and a few pounds

Aelurodon

Aelurodon Prehistoric Mammal

Fossil Site: Plains of North America
Time Period: Middle-late Miocene (16-9 million years ago)
Diet: Carnivore
Size:5 feet long and 50-75 pounds

Epicyon

Epicyon Prehistoric Mammal

Fossil Site: Plains of North America
Time Period: Middle-Late Miocene (15-5 million years ago)
Diet: Carnivore
Size:5 feet long and 150 pounds

Palaeochiropteryx

Palaeochiropteryx Prehistoric Mammal

Fossil Site: Woodlands of western Europe
Time Period: Early Eocene (50 million years ago)
Diet: Insects
Size:3 inches long and one ounce

Aepycamelus

Aepycamelus Prehistoric Mammal

Fossil Site: Plains of North America
Time Period: Middle-Late Miocene (15-5 million years ago)
Diet: Herbivore
Size:10 feet high and 1,000-2,000 pounds

Epihippus

Epihippus Prehistoric Mammal

Fossil Site: Plains of North America
Time Period: Late Eocene (30 million years ago)
Diet: Herbivore
Size:2 feet high and a few hundred pounds

Palaeolagus

Palaeolagus Prehistoric Mammal

Fossil Site: Plains and woodlands of North America
Time Period: Oligocene (33-23 million years ago)
Diet: Grass
Size:one foot long and a few pounds

Aetiocetus

Aetiocetus Prehistoric Mammal

Fossil Site: Pacific coast of North America
Time Period: Late Oligocene (25 million years ago)
Diet: Fish, crustaceans and plankton
Size:25 feet long and a few tons

Eremotherium

Eremotherium Prehistoric Mammal

Fossil Site: Plains of North and South America
Time Period: Pleistocene-Modern (2 million-10,000 years ago)
Diet: Herbivore
Size:20 feet long and 3 tons

Palaeomastodon

Palaeomastodon Prehistoric Mammal

Fossil Site: Swamps of northern Africa
Time Period: Late Eocene (35 million years ago)
Diet: Herbivore
Size:12 feet long and 2 tons

Afropithecus

Afropithecus Prehistoric Mammal

Fossil Site: Jungles of Africa
Time Period: Middle Miocene (17 million years ago)
Diet: Fruits and seeds
Size:5 feet long and 100 pounds

Eucladoceros

Eucladoceros Prehistoric Mammal

Fossil Site: Plains of Eurasia
Time Period: Pliocene-Pleistocene (5 million-10,000 years ago)
Diet: Grass
Size:8 feet long and 750-1,000 pounds

Palaeopropithecus

Palaeopropithecus Prehistoric Mammal

Fossil Site: Woodlands of Madagascar
Time Period: Pleistocene-Modern (2 million-500 years ago)
Diet: Leaves, fruits and seeds
Size:5 feet long and 200 pounds

Agriotherium

Agriotherium Prehistoric Mammal

Fossil Site: Plains of North America, Eurasia and Africa
Time Period:
Diet: Omnivorous
Size:8 feet long and 1,000-1,500 pounds

Eucyon

Eucyon Prehistoric Mammal

Fossil Site: Plains of North America
Time Period: Late Miocene (10-5 million years ago)
Diet: Carnivore
Size:3 feet long and 25 pounds

Palaeotherium

Palaeotherium Prehistoric Mammal

Fossil Site: Woodlands of Western Europe
Time Period: Eocene-Early Oligocene (50-30 million years ago)
Diet: Herbivore
Size:4 feet long and a few hundred pounds

Alphadon

Alphadon Prehistoric Mammal

Fossil Site: Woodlands of North America
Time Period:
Diet: Insects, fruit and small animals
Size:one foot long and 12 ounces

Eurhinodelphis

Eurhinodelphis Prehistoric Mammal

Fossil Site: Oceans of the northern hemisphere
Time Period: Middle-Late Miocene (15-5 million years ago)
Diet: Fish
Size:6 feet long and 500 pounds

Paleoparadoxia

Paleoparadoxia Prehistoric Mammal

Fossil Site: Shorelines of the northern Pacific
Time Period: Miocene (20-10 million years ago)
Diet: Herbivore
Size:10 feet long and 1,000-2,000 pounds

Ambulocetus

Ambulocetus Prehistoric Mammal

Fossil Site: Shores of central Asia
Time Period: Early Eocene (50 million years ago)
Diet: Fish and crustaceans
Size:10 feet long and 500 pounds

European Lion

European Lion Prehistoric Mammal

Fossil Site: Plains of Europe
Time Period: Late Pleistocene-Modern (1 million-1,000 years ago)
Diet: Carnivore
Size:4 feet high and 400 pounds

Palorchestes

Palorchestes Prehistoric Mammal

Fossil Site: Plains of Australia
Time Period: Pliocene-Modern (5 million-10,000 years ago)
Diet: Herbivore
Size:8 feet long and 500 pounds

Amebelodon

Amebelodon Prehistoric Mammal

Fossil Site: Plains of North America
Time Period: Late Miocene (10-6 million years ago)
Diet: Herbivore
Size:10 feet long and 1-2 tons

Eurotamandua

Eurotamandua Prehistoric Mammal

Fossil Site: Woodlands of western Europe
Time Period: Middle Eocene (50-40 million years ago)
Diet: Ants
Size:3 feet long and 25 pounds

Parahippus

Parahippus Prehistoric Mammal

Fossil Site: Plains of North America
Time Period: Miocene (23-5 million years ago)
Diet: Herbivore
Size:5 feet tall and 500 pounds

American Cheetah

American Cheetah Prehistoric Mammal

Fossil Site: Plains of North America
Time Period:
Diet: Carnivore
Size:6 feet long and 100-150 pounds

Eusmilus

Eusmilus Prehistoric Mammal

Fossil Site: Plains of North America and western Europe
Time Period:
Diet: Carnivore
Size:6 feet long and 500 pounds

Paranthropus

Paranthropus Prehistoric Mammal

Fossil Site: Plains of Africa
Time Period: Late Pliocene (3-2 million years ago)
Diet: Mostly herbivorous
Size:5 feet tall and 100-150 pounds

American Lion

American Lion Prehistoric Mammal

Fossil Site: Plains of North America
Time Period:
Diet: Carnivore
Size:13 feet long and 1,000 pounds

Fruitafossor

Fruitafossor Prehistoric Mammal

Fossil Site: Woodlands of North America
Time Period:
Diet: Insects
Size:6 inches long and a few ounces

Pelorovis

Pelorovis Prehistoric Mammal

Fossil Site: Plains of Africa
Time Period: Pleistocene-Modern (2 million-5,000 years ago)
Diet: Grass
Size:10 feet long and one ton

American Zebra

American Zebra Prehistoric Mammal

Fossil Site: Plains of North America
Time Period: Pliocene (5-2 million years ago)
Diet: Grass
Size:4-5 feet tall and 500-1,000 pounds

Ganlea

Ganlea Prehistoric Mammal

Fossil Site: Woodlands of Asia
Time Period: Late Eocene (38 million years ago)
Diet: Fruits, seeds and nuts
Size:2 feet long and 5 pounds

Peltephilus

Peltephilus Prehistoric Mammal

Fossil Site: Plains of South America
Time Period: Late Oligocene-Early Miocene (25-20 million years ago)
Diet: Unknown; possibly omnivorous
Size:5 feet long and 150-200 pounds

Amphicyon

Amphicyon Prehistoric Mammal

Fossil Site: Plains of the northern hemisphere
Time Period: Middle Oligocene-Early Miocene (30-20 million years ago)
Diet: Omnivorous
Size:6 feet long and 200 pounds

Giant Beaver

Giant Beaver Prehistoric Mammal

Fossil Site: Woodlands of North America
Time Period: Late Pliocene-Modern (3 million-10,000 years ago)
Diet: Herbivore
Size:8 feet long and 200 pounds

Phenacodus

Phenacodus Prehistoric Mammal

Fossil Site: Plains of North America
Time Period: Early-Middle Eocene (55-45 million years ago)
Diet: Grass
Size:5 feet long and 50-75 pounds

Anancus

Anancus Prehistoric Mammal

Fossil Site: Jungles of Eurasia
Time Period: Late Miocene-Early Pleistocene (3-1.5 million years ago)
Diet: Herbivore
Size:10 feet tall and 1-2 tons

Giant Ground Sloth

Giant Ground Sloth Prehistoric Mammal

Fossil Site: Woodlands of North America
Time Period: Miocene-Modern (10 million-10,000 years ago)
Diet: Omnivorous
Size:10 feet long and 500 pounds

Phiomia

Phiomia Prehistoric Mammal

Fossil Site: Woodlands of northern Africa
Time Period: Late Eocene-Early Oligocene (37-30 million years ago)
Diet: Herbivore
Size:10 feet long and half a ton

Anchitherium

Anchitherium Prehistoric Mammal

Fossil Site: Woodlands of North America and Eurasia
Time Period: Miocene (25-5 million years ago)
Diet: Herbivore
Size:3 feet tall and a few hundred pounds

Giant Hyena

Giant Hyena Prehistoric Mammal

Fossil Site: Plains of Africa and Eurasia
Time Period: Late Pliocene-Pleistocene (3 million-500,000 years ago)
Diet: Carnivore
Size:3 feet high and 400 pounds

Phosphatherium

Phosphatherium Prehistoric Mammal

Fossil Site: Woodlands of Africa
Time Period: Middle-Late Paleocene (60-55 million years ago)
Diet: Herbivore
Size:3 feet long and 100 pounds

Ancylotherium

Ancylotherium Prehistoric Mammal

Fossil Site: Plains of Africa
Time Period: Late Miocene-Pliocene (10-2 million years ago)
Diet: Herbivore
Size:6 feet tall and 500 pounds

Giant Short-Faced Bear

Giant Short-Faced Bear Prehistoric Mammal

Fossil Site: Mountains and woodlands of North America
Time Period:
Diet: Mostly carnivorous
Size:13 feet long and one ton

Pierolapithecus

Pierolapithecus Prehistoric Mammal

Fossil Site: Woodlands of western Europe
Time Period: Middle Miocene (13 million years ago)
Diet: Fruits and seeds
Size:4 feet long and 50-75 pounds

Andrewsarchus

Andrewsarchus Prehistoric Mammal

Fossil Site: Plains of central Asia
Time Period: Middle-Late Eoceone (45-35 million years ago)
Diet: Carnivore
Size:13 feet long and 1,000-2,000 pounds

Gigantopithecus

Gigantopithecus Prehistoric Mammal

Fossil Site: Woodlands of Asia
Time Period: Pleistocene (1 million-250,000 years ago)
Diet: Probably omnivorous
Size:9 feet tall and 1,000 pounds

Pig-Footed Bandicoot

Pig-Footed Bandicoot Prehistoric Mammal

Fossil Site: Plains of Australia
Time Period: Pleistocene-Modern (2 million-100 years ago)
Diet: Herbivore
Size:6 inches long and a few ounces

Archaeoindris

Archaeoindris Prehistoric Mammal

Fossil Site: Woodlands of Magadascar
Time Period: Pleistocene-Modern (2 million-2,000 years ago)
Diet: Herbivore
Size:5 feet tall and 400-500 pounds

Glossotherium

Glossotherium Prehistoric Mammal

Fossil Site: Plains of North and South America
Time Period:
Diet: Herbivore
Size:13 feet long and 500-1,000 pounds

Platybelodon

Platybelodon Prehistoric Mammal

Fossil Site: Plains of Africa and Eurasia
Time Period: Late Miocene (10-6 million years ago)
Diet: Herbivore
Size:10 feet long and 2 tons

Archaeolemur

Archaeolemur Prehistoric Mammal

Fossil Site: Plains of Madagascar
Time Period: Pleistocene-Modern (2 million-1,000 years ago)
Diet: Plants, seeds and fruits
Size:3 feet long and 25-30 pounds

Glyptodon

Glyptodon Prehistoric Mammal

Fossil Site: Swamps of South America
Time Period: Pleistocene-Modern (2 million-10,000 years ago)
Diet: Herbivore
Size:10 feet long and one ton

Platygonus

Platygonus Prehistoric Mammal

Fossil Site: Plains of North America
Time Period: Late Miocene-Modern (10 million-10,000 years ago)
Diet: Herbivore
Size:3 feet long and 100 pounds

Ardipithecus

Ardipithecus Prehistoric Mammal

Fossil Site: Woodlands and plains of Africa
Time Period: Late Miocene-Early Pliocene (6-4 million years ago)
Diet: Probably omnivorous
Size:5 feet long and 100-150 pounds

Gomphotherium

Gomphotherium Prehistoric Mammal

Fossil Site: Swamps of North America, Africa and Eurasia
Time Period: Early Miocene-Early Pliocene (15-5 million years ago)
Diet: Herbivore
Size:13 feet long and 2 tons

Plesiadapis

Plesiadapis Prehistoric Mammal

Fossil Site: Woodlands of North America and Eurasia
Time Period:
Diet: Fruits and seeds
Size:2 feet long and 5 pounds

Arsinoitherium

Arsinoitherium Prehistoric Mammal

Fossil Site: Plains of northern Africa
Time Period: Late Eocene-Early Oligocene (35-30 million years ago)
Diet: Herbivore
Size:10 feet long and one ton

Hadrocodium

Hadrocodium Prehistoric Mammal

Fossil Site: Woodlands of Asia
Time Period:
Diet: Insects
Size:one inch long and two grams

Pliohippus

Pliohippus Prehistoric Mammal

Fossil Site: Plains of North America
Time Period: Late Miocene-Pliocene (12-2 million years ago)
Diet: Herbivore
Size:6 feet high and 1,000 pounds

Astrapotherium

Astrapotherium Prehistoric Mammal

Fossil Site: Plains of South America
Time Period: Early-Middle Miocene (23-15 million years ago)
Diet: Herbivore
Size:9 feet long and 500-1,000 pounds

Hadropithecus

Hadropithecus Prehistoric Mammal

Fossil Site: Plains of Madagascar
Time Period: Pleistocene-Modern (2 million-2,000 years ago)
Diet: Plants and seeds
Size:5 feet long and 75 pounds

Pliopithecus

Pliopithecus Prehistoric Mammal

Fossil Site: Woodlands of Eurasia
Time Period: Middle Miocene (15-10 million years ago)
Diet: Leaves
Size:3 feet tall and 50 pounds

Atlas Bear

Atlas Bear Prehistoric Mammal

Fossil Site: Mountains of northern Africa
Time Period: Pleistocene-Modern (2 million-100 years ago)
Diet: Omnivorous
Size:9 feet long and 1,000 pounds

Hapalops

Hapalops Prehistoric Mammal

Fossil Site: Woodlands of South America
Time Period: Early-Middle Miocene (23-13 million years ago)
Diet: Herbivore
Size:4 feet long and 50-75 pounds

Poebrotherium

Poebrotherium Prehistoric Mammal

Fossil Site: Plains of North America
Time Period: Oligocene (33-23 million years ago)
Diet: Herbivore
Size:3 feet tall and 75-100 pounds

Auroch

Auroch Prehistoric Mammal

Fossil Site: Plains of Eurasia and northern Africa
Time Period: Pleistocene-Modern (2 million-500 years ago)
Diet: Grass
Size:6 feet high and one ton

Hemicyon

Hemicyon Prehistoric Mammal

Fossil Site: Plains of Eurasia and North America
Time Period: Early-Middle Miocene (20-15 million years ago)
Diet: Carnivore
Size:5 feet long and 100-150 pounds

Potamotherium

Potamotherium Prehistoric Mammal

Fossil Site: Rivers of Europe and North America
Time Period: Miocene (23-5 million years ago)
Diet: Fish
Size:5 feet long and 20-30 pounds

Australopithecus

Australopithecus Prehistoric Mammal

Fossil Site: Plains of Africa
Time Period: Late Pliocene-Early Pleistocene (4-2 million years ago)
Diet: Mostly herbivorous
Size:4 feet tall and 50-75 pounds

Hesperocyon

Hesperocyon Prehistoric Mammal

Fossil Site: Plains of North America
Time Period: Late Eocene (40-34 million years ago)
Diet: Carnivore
Size:3 feet long and 10-20 pounds

Primelephas

Primelephas Prehistoric Mammal

Fossil Site: Woodlands of Africa
Time Period: Late Miocene (5 million years ago)
Diet: Herbivore
Size:13 feet long and 2 tons

Babakotia

Babakotia Prehistoric Mammal

Fossil Site: Woodlands of Madagascar
Time Period: Pleistocene-Modern (2 million-2,000 years ago)
Diet: Leaves, fruits and seeds
Size:4 feet long and 40 pounds

Hippidion

Hippidion Prehistoric Mammal

Fossil Site: Plains of South America
Time Period: Pleistocene-modern (2 million-10,000 years ago)
Diet: Herbivore
Size:6 feet long and 500 pounds

Proailurus

Proailurus Prehistoric Mammal

Fossil Site: Woodlands of Eurasia
Time Period: Late Oligocene-Early Miocene (25-20 million years ago)
Diet: Carnivore
Size:two feet long and 20 pounds

Baiji

Baiji Prehistoric Mammal

Fossil Site: Yangtze River of China
Time Period: Late Miocene-Modern (20 million-10 years ago)
Diet: Fish
Size:8 feet long and 500 pounds

Hoplophoneus

Hoplophoneus Prehistoric Mammal

Fossil Site: Woodlands of North America
Time Period: Late Eocene-Early Oligocene (38-33 million years ago)
Diet: Carnivore
Size:four feet long and 100 pounds

Proconsul

Proconsul Prehistoric Mammal

Fossil Site: Jungles of Africa
Time Period: Early Miocene (23-17 million years ago)
Diet: Omnivorous
Size:3-5 feet long and 25-100 pounds

Bali Tiger

Bali Tiger Prehistoric Mammal

Fossil Site: Island of Bali
Time Period: Modern (went extinct 50 years ago)
Diet: Carnivore
Size:7 feet long and 200 pounds

Horned Gopher

Horned Gopher Prehistoric Mammal

Fossil Site: Woodlands of North America
Time Period: Late Miocene (10-5 million years ago)
Diet: Herbivore
Size:one foot long and a few pounds

Procoptodon

Procoptodon Prehistoric Mammal

Fossil Site: Plains of Australia
Time Period: Pleistocene-Modern (2 million-10,000 years ago)
Diet: Herbivore
Size:10 feet tall and 500 pounds

Barbary Lion

Barbary Lion Prehistoric Mammal

Fossil Site: Plains of northern Africa
Time Period: Late Pleistocene-Modern (500,000-100 years ago)
Diet: Carnivore
Size:7 feet long and 500 pounds

Hyaenodon

Hyaenodon Prehistoric Mammal

Fossil Site: Plains of North America, Eurasia and Africa
Time Period: Late Eocene-Early Miocene (40-20 million years ago)
Diet: Carnivore
Size:1 to 5 feet long and 5 to 100 pounds

Propliopithecus

Propliopithecus Prehistoric Mammal

Fossil Site: Woodlands of northern Africa
Time Period: Middle Oligocene (30-25 million years ago)
Diet: Probably omnivorous
Size:2 feet long and 10 pounds

Barbourofelis

Barbourofelis Prehistoric Mammal

Fossil Site: Plains of North America
Time Period: Late Miocene (13-5 million years ago)
Diet: Carnivore
Size:6 feet long and 200 pounds

Hypohippus

Hypohippus Prehistoric Mammal

Fossil Site: Woodlands of North America
Time Period:
Diet: Herbivore
Size:6 feet long and 500 pounds

Prorastomus

Prorastomus Prehistoric Mammal

Fossil Site: Islands of the Caribbean
Time Period: Middle Eocene (40 million years ago)
Diet: Herbivore
Size:5 feet long and 300-500 pounds

Barytherium

Barytherium Prehistoric Mammal

Fossil Site: Woodlands of Africa
Time Period: Late Eocene-early Oligocene (40-30 million years ago)
Diet: Herbivore
Size:10 feet long and 1-2 tons

Hyrachyus

Hyrachyus Prehistoric Mammal

Fossil Site: Plains of North America
Time Period: Middle Eocene (40 million years ago)
Diet: Herbivore
Size:3-5 feet long and 100-200 pounds

Protoceras

Protoceras Prehistoric Mammal

Fossil Site: Plains of North America
Time Period: Late Oligocene-Early Miocene (25-20 million years ago)
Diet: Herbivore
Size:3-4 feet long and 100-200 pounds

Basilosaurus

Basilosaurus Prehistoric Mammal

Fossil Site: Oceans of North America, Africa and southern Asia
Time Period: Middle Eocene (40-35 million years ago)
Diet: Fish and squids
Size:60 feet long and 50-75 tons

Hyracodon

Hyracodon Prehistoric Mammal

Fossil Site: Woodlands of North America
Time Period: Middle Oligocene (30-25 million years ago)
Diet: Herbivore
Size:5 feet long and 500 pounds

Protocetus

Protocetus Prehistoric Mammal

Fossil Site: Shores of Africa and Asia
Time Period: Middle Eocene (42-38 million years ago)
Diet: Fish and squids
Size:8 feet long and a few hundred pounds

Bison latifrons

Bison latifrons Prehistoric Mammal

Fossil Site: Plains and woodlands of North America
Time Period: Late Pleistocene (300,000-15,000 years ago)
Diet: Grass
Size:8 feet high and 2 tons

Hyracotherium

Hyracotherium Prehistoric Mammal

Fossil Site: Woodlands of North America and Western Europe
Time Period: Early-Middle Eocene (55-45 million years ago)
Diet: Herbivore
Size:2 feet long and 50 pounds

Pseudaelurus

Pseudaelurus Prehistoric Mammal

Fossil Site: Plains of Eurasia and North America
Time Period: Miocene-Pliocene (20-8 million years ago)
Diet: Carnivore
Size:5 feet long and 50 pounds

Bluebuck

Bluebuck Prehistoric Mammal

Fossil Site: Plains of South Africa
Time Period: Late Pleistocene-Modern (500,000-200 years ago)
Diet: Grass
Size:10 feet long and 300-400 pounds

Icaronycterus

Icaronycterus Prehistoric Mammal

Fossil Site: Woodlands of North America
Time Period: Early Eocene (55-50 million years ago)
Diet: Insects
Size:one foot long and a few ounces

Ptilodus

Ptilodus Prehistoric Mammal

Fossil Site: Woodlands of North America
Time Period: Palaeocene (65-55 million years ago)
Diet: Omnivorous
Size:18 inches long and a few pounds

Borhyaena

Borhyaena Prehistoric Mammal

Fossil Site: Woodlands of South America
Time Period: Late Oligocene-Early Miocene (25-20 million years ago)
Diet: Carnivore
Size:5 feet long and 200 pounds

Ictitherium

Ictitherium Prehistoric Mammal

Fossil Site: Plains of northern Africa and Eurasia
Time Period: Middle Miocene-Early Pliocene (13-5 million years ago)
Diet: Omnivorous
Size:4 feet long and 25-50 pounds

Puijila

Puijila Prehistoric Mammal

Fossil Site: Shores of western Canada
Time Period: Late Oligocene-Early Miocene (25-20 million years ago)
Diet: Fish and small animals
Size:3 feet long and 25-50 pounds

Branisella

Branisella Prehistoric Mammal

Fossil Site: Woodlands of South America
Time Period: Middle Oligocene (30-25 million years ago)
Diet: Fruits and seeds
Size:a foot and a half long and a few pounds

Indohyus

Indohyus Prehistoric Mammal

Fossil Site: Shores of central Asia
Time Period: Early Eocene (48 million years ago)
Diet: Herbivore
Size:2 feet long and 10 pounds

Purgatorius

Purgatorius Prehistoric Mammal

Fossil Site: Woodlands of North America
Time Period:
Diet: Omnivorous
Size:6 inches long and a few ounces

Brontotherium

Brontotherium Prehistoric Mammal

Fossil Site: Plains of North America
Time Period: Late Eocene-Early Oligocene (38-30 million years ago)
Diet: Herbivore
Size:16 feet long and 1-2 tons

Indricotherium

Indricotherium Prehistoric Mammal

Fossil Site: Plains of Asia
Time Period: Oligocene (33-23 million years ago)
Diet: Herbivore
Size:40 feet long and 15-20 tons

Pyrotherium

Pyrotherium Prehistoric Mammal

Fossil Site: Woodlands of South America
Time Period: Early Oligocene (34-30 million years ago)
Diet: Herbivore
Size:10 feet long and 500-1,000 pounds

Brygmophyseter

Brygmophyseter Prehistoric Mammal

Fossil Site: Pacific Ocean
Time Period: Miocene (15-5 million years ago)
Diet: Sharks, seals, birds and whales
Size:40 feet long and 5-10 tons

Irish Elk

Irish Elk Prehistoric Mammal

Fossil Site: Plains of Eurasia
Time Period: Late Miocene-Modern (5 million-10,000 years ago)
Diet: Herbivore
Size:8 feet long and 500 pounds

Quagga

Quagga Prehistoric Mammal

Fossil Site: Plains of South Africa
Time Period:
Diet: Grass
Size:4 feet high and 500 pounds

Camelops

Camelops Prehistoric Mammal

Fossil Site: Plains of North America
Time Period: Pleistocene-Modern (2 million-10,000 years ago)
Diet: Herbivore
Size:7 feet tall and 500-1,000 pounds

Janjucetus

Janjucetus Prehistoric Mammal

Fossil Site: Southern coast of Australia
Time Period:
Diet: Fish
Size:12 feet long and 500-1,000 pounds

Repenomamus

Repenomamus Prehistoric Mammal

Fossil Site: Woodlands of Asia
Time Period:
Diet: Carnivore
Size:3 feet long and 25 pounds

Cape Lion

Cape Lion Prehistoric Mammal

Fossil Site: Plains of South Africa
Time Period: Late Pleistocene-Modern (500,000-100 years ago)
Diet: Carnivore
Size:7 feet long and 500 pounds

Kutchicetus

Kutchicetus Prehistoric Mammal

Fossil Site: Shores of central Asia
Time Period: Middle Eocene (46-43 million years ago)
Diet: Fish and squids
Size:8 feet long and a few hundred pounds

Rodhocetus

Rodhocetus Prehistoric Mammal

Fossil Site: Shores of central Asia
Time Period: Early Eocene (47 million years ago)
Diet: Fish and squids
Size:10 feet long and 500 pounds

Caribbean Monk Seal

Caribbean Monk Seal Prehistoric Mammal

Fossil Site: Shores of the Caribbean
Time Period: Pleistocene-Modern (2 million-70 years ago)
Diet: Fish, lobsters and crabs
Size:8 feet long and 400 pounds

Leptictidium

Leptictidium Prehistoric Mammal

Fossil Site: Woodlands of Europe
Time Period: Eocene (55-35 million years ago)
Diet: Probably omnivorous
Size:3 feet long and a few pounds

Saadanius

Saadanius Prehistoric Mammal

Fossil Site: Woodlands of central Asia
Time Period: Middle Oligocene (29-28 million years ago)
Diet: Probably herbivorous
Size:3 feet long and 25 pounds

Caspian Tiger

Caspian Tiger Prehistoric Mammal

Fossil Site: Plains of central Asia
Time Period: Modern (went extinct 50 years ago)
Diet: Carnivore
Size:9 feet long and 500 pounds

Leptocyon

Leptocyon Prehistoric Mammal

Fossil Site: Woodlands of North America
Time Period: Oligocene-Miocene (34-10 million years ago))
Diet: Small animals and insects
Size:one foot long and five pounds

Samotherium

Samotherium Prehistoric Mammal

Fossil Site: Plains of Eurasia and Africa
Time Period: Late Miocene-Early Pliocene (10-5 million years ago)
Diet: Herbivore
Size:10 feet tall and half a ton

Castorocauda

Castorocauda Prehistoric Mammal

Fossil Site: Lakes of central Asia
Time Period:
Diet: Fish
Size:one foot long and one or two pounds

Leviathan

Leviathan Prehistoric Mammal

Fossil Site: Shores of South America
Time Period: Middle Miocene (13-12 million years ago)
Diet: Large marine creatures
Size:50 feet long and 25-50 tons

Sarkastodon

Sarkastodon Prehistoric Mammal

Fossil Site: Plains of central Asia
Time Period: Late Eocene (35 million years ago)
Diet: Carnivore
Size:10 feet long and 500-1,000 pounds

Cave Bear

Cave Bear Prehistoric Mammal

Fossil Site: Mountains and woodlands of Europe
Time Period: Pleistocene-Modern (2 million-25,000 years ago)
Diet: Mostly plants
Size:7 to 10 feet long and 500-1,000 pounds, depending on sex

Liaoconodon

Liaoconodon Prehistoric Mammal

Fossil Site: Woodlands of Asia
Time Period:
Diet: Probably insects
Size:one foot long and one pound

Sinoconodon

Sinoconodon Prehistoric Mammal

Fossil Site: Woodlands of Asia
Time Period:
Diet: Omnivorous
Size:6 inches long and a few ounces

Cave Hyena

Cave Hyena Prehistoric Mammal

Fossil Site: Plains of Eurasia
Time Period:
Diet: Carnivore
Size:5 feet long and 200-250 pounds

Machairodus

Machairodus Prehistoric Mammal

Fossil Site: Woodlands of North America, Africa and Eurasia
Time Period: Late Miocene-Pleistocene (10 million to 2 million years ago)
Diet: Carnivore
Size:5 feet long and a few hundred pounds

Sinodelphys

Sinodelphys Prehistoric Mammal

Fossil Site: Woodlands of Asia
Time Period:
Diet: Insects
Size:6 inches long and a few ounces

Cave Lion

Cave Lion Prehistoric Mammal

Fossil Site: Woodlands and mountains of Eurasia
Time Period:
Diet: Carnivore
Size:7-8 feet long and 700-800 pounds

Macrauchenia

Macrauchenia Prehistoric Mammal

Fossil Site: Plains of South America
Time Period:
Diet: Herbivore
Size:10 feet long and 500-1,000 pounds

Sinonyx

Sinonyx Prehistoric Mammal

Fossil Site: Plains of eastern Asia
Time Period: Late Paleocene (60-55 million years ago)
Diet: Carnivore
Size:5 feet long and 100 pounds

Cetotherium

Cetotherium Prehistoric Mammal

Fossil Site: Seashores of Eurasia
Time Period: Middle Miocene (15-10 million years ago)
Diet: Plankton
Size:15 feet long and one ton

Maiacetus

Maiacetus Prehistoric Mammal

Fossil Site: Shores of central Asia
Time Period: Early Eocene (48 million years ago)
Diet: Fish and squids
Size:7 feet long and 600 pounds

Sivapithecus

Sivapithecus Prehistoric Mammal

Fossil Site: Woodlands of central Asia
Time Period: Middle-Late Miocene (12-7 million years ago)
Diet: Herbivore
Size:5 feet long and 50-75 pounds

Chalicotherium

Chalicotherium Prehistoric Mammal

Fossil Site: Plains of Eurasia
Time Period: Middle-Late Miocene (15-5 million years ago)
Diet: Herbivore
Size:9 feet high and 500-1,000 pounds

Mammalodon

Mammalodon Prehistoric Mammal

Fossil Site: Coast of southern Australia
Time Period: Late Oligocene (25 million years ago)
Diet: Plankton and krill
Size:8 feet long and a few hundred pounds

Sivatherium

Sivatherium Prehistoric Mammal

Fossil Site: Plains of India and Africa
Time Period: Late Pliocene-Modern (5 million-10,000 years ago)
Diet: Grass
Size:13 feet long and 1,000-2,000 pounds

Chriacus

Chriacus Prehistoric Mammal

Fossil Site: Woodlands of North America
Time Period: Early Paleocene (65-60 million years ago)
Diet: Omnivorous
Size:3 feet long and a few pounds

Mastodon

Mastodon Prehistoric Mammal

Fossil Site: Plains of North America and Eurasia
Time Period: Pleistocene (2 million-10,000 years ago)
Diet: Herbivore
Size:13 feet long and 2 tons

Smilodectes

Smilodectes Prehistoric Mammal

Fossil Site: Woodlands of North America
Time Period: Early Eocene (55 million years ago)
Diet: Herbivore
Size:2 feet long and 5-10 pounds

Cimexomys

Cimexomys Prehistoric Mammal

Fossil Site: Woodlands of North America
Time Period:
Diet: Insects, possibly eggs
Size:one foot long and half a pound

Megaladapis

Megaladapis Prehistoric Mammal

Fossil Site: Woodlands of Madagascar
Time Period: Pleistocene-Modern (2 million-10,000 years ago)
Diet: Herbivore
Size:5 feet long and 100 pounds

Smilodon

Smilodon Prehistoric Mammal

Fossil Site: Plains of North and South America
Time Period: Pliocene-Modern (5 million to 10,000 years ago)
Diet: Carnivore
Size:6 feet long and 500 pounds

Cimolestes

Cimolestes Prehistoric Mammal

Fossil Site: Woodlands of North America and Africa
Time Period:
Diet: Insects
Size:8 inches long and half a pound

Megantereon

Megantereon Prehistoric Mammal

Fossil Site: Plains of North America, Africa and Eurasia
Time Period: Late Oligocene-Pleistocene (10 million to 500,000 years ago)
Diet: Carnivore
Size:4 feet long and 100 pounds

Stag Moose

Stag Moose Prehistoric Mammal

Fossil Site: Plains of North America
Time Period: Pleistocene-Modern (2 million-10,000 years ago)
Diet: Grass
Size:8 feet long and 1,000 pounds

Coryphodon

Coryphodon Prehistoric Mammal

Fossil Site: Swamps of the northern hemisphere
Time Period: Early Eocene (55-50 million years ago)
Diet: Herbivore
Size:7 feet long and half a ton

Megatherium

Megatherium Prehistoric Mammal

Fossil Site: Woodlands of South America
Time Period: Pliocene-Modern (5 million-10,000 years ago)
Diet: Herbivore
Size:20 feet long and 2-3 tons

Stegomastodon

Stegomastodon Prehistoric Mammal

Fossil Site: Plains of North and South America
Time Period: Late Pliocene-Modern(3 million-10,000 years ago)
Diet: Herbivore
Size:12 feet long and 2-3 tons

Crusafontia

Crusafontia Prehistoric Mammal

Fossil Site: Woodlands of Western Europe
Time Period:
Diet: Omnivorous
Size:4 inches long and one ounce

Megazostrodon

Megazostrodon Prehistoric Mammal

Fossil Site: Woodlands of southern Africa
Time Period:
Diet: Insects
Size:4 inches long and one ounce

Steller's Sea Cow

Steller's Sea Cow Prehistoric Mammal

Fossil Site: Shores of the northern Pacific
Time Period: Pleistocene-Modern (2 million-200 years ago)
Diet: Seaweed
Size:25-30 feet long and 8-10 tons

Cuvieronius

Cuvieronius Prehistoric Mammal

Fossil Site: Woodlands of North and South America
Time Period: Pliocene-Modern (5 million to 10,000 years ago)
Diet: Herbivore
Size:10 feet long and one ton

Megistotherium

Megistotherium Prehistoric Mammal

Fossil Site: Plains of north Africa
Time Period: Early Miocene (20 million years ago)
Diet: Carnivore
Size:12 feet long and 1,000-2,000 pounds

Stephanorhinus

Stephanorhinus Prehistoric Mammal

Fossil Site: Plains of Eurasia
Time Period: Pleistocene (2 million-500,000 years ago)
Diet: Herbivore
Size:15 feet long and 5 tons

Cynodictis

Cynodictis Prehistoric Mammal

Fossil Site: Plains of North America
Time Period: Late Eocene-Early Oligocene (37-28 million years ago)
Diet: Carnivore
Size:two feet long and 5-10 pounds

Menoceras

Menoceras Prehistoric Mammal

Fossil Site: Plains of North America
Time Period: Early-Middle Miocene (30-20 million years ago)
Diet: Herbivore
Size:4-5 feet long and 300-500 pounds

Steropodon

Steropodon Prehistoric Mammal

Fossil Site: Woodlands of Australia
Time Period:
Diet: Fish and crustaceans
Size:one foot long and five pounds

Daeodon

Daeodon Prehistoric Mammal

Fossil Site: Plains of North America
Time Period: Miocene (23-5 million years ago)
Diet: Omnivorous
Size:12 feet long and one ton

Merychippus

Merychippus Prehistoric Mammal

Fossil Site: Plains of North America
Time Period: Late Miocene (17-10 million years ago)
Diet: Herbivore
Size:6 feet tall and 1,000 pounds

Sthenurus

Sthenurus Prehistoric Mammal

Fossil Site: Plains of Australia
Time Period: Late Pleistocene (500,000-10,000 years ago)
Diet: Herbivore
Size:10 feet tall and 500 pounds

Darwinius

Darwinius Prehistoric Mammal

Fossil Site: Woodlands of western Europe
Time Period: Middle Eocene (47 million years ago)
Diet: Probably omnivorous
Size:2 feet long and 5 pounds

Merycoidodon

Merycoidodon Prehistoric Mammal

Fossil Site: Plains of North America
Time Period: Oligocene (33-23 million years ago)
Diet: Herbivore
Size:5 feet long and 200-300 pounds

Straight-Tusked Elephant

Straight-Tusked Elephant Prehistoric Mammal

Fossil Site: Plains of western Europe
Time Period: Middle-Late Pleistocene (1 million-50,000 years ago)
Diet: Herbivore
Size:12 feet tall and 2-3 tons

Deinogalerix

Deinogalerix Prehistoric Mammal

Fossil Site: Woodlands of western Europe
Time Period: Late Miocene (10-5 million years ago)
Diet: Probably insects and carrion
Size:2 feet long and 10 pounds

Mesohippus

Mesohippus Prehistoric Mammal

Fossil Site: Woodlands of North America
Time Period: Late Eocene-Middle Oligocene (40-30 million years ago)
Diet: Herbivore
Size:4 feet long and 75 pounds

Syndyoceras

Syndyoceras Prehistoric Mammal

Fossil Site: Plains of North America
Time Period: Late Oligocene-Early Miocene (25-20 million years ago)
Diet: Herbivore
Size:5 feet long and 200-300 pounds

Deinotherium

Deinotherium Prehistoric Mammal

Fossil Site: Woodlands of Africa and Eurasia
Time Period: Middle Miocene-Modern (10 million to 10,000 years ago)
Diet: Herbivore
Size:16 feet long and 5 tons

Mesonyx

Mesonyx Prehistoric Mammal

Fossil Site: Plains of North America
Time Period: Early-Middle Eocene (55-45 million years ago)
Diet: Carnivore
Size:5 feet long and 50-75 pounds

Synthetoceras

Synthetoceras Prehistoric Mammal

Fossil Site: Plains of North America
Time Period: Late Miocene (10-5 million years ago)
Diet: Herbivore
Size:7 feet long and 500-750 pounds

Desmostylus

Desmostylus Prehistoric Mammal

Fossil Site: Shorelines of the northern Pacific
Time Period: Miocene (23-5 million years ago)
Diet: Herbivore
Size:6 feet long and 500 pounds

Mesopithecus

Mesopithecus Prehistoric Mammal

Fossil Site: Plains and woodlands of Eurasia
Time Period: Late Miocene (7-5 million years ago)
Diet: Herbivore
Size:16 inches long and 5 pounds

Taeniolabis

Taeniolabis Prehistoric Mammal

Fossil Site: Woodlands of North America
Time Period: Paleocene (65-55 million years ago)
Diet: Herbivore
Size:3 feet long and 50 pounds

Diacodexis

Diacodexis Prehistoric Mammal

Fossil Site: Woodlands of North America and Eurasia
Time Period: Early Eocene (55-50 million years ago)
Diet: Herbivore
Size:18 inches long and 5 pounds

Metailurus

Metailurus Prehistoric Mammal

Fossil Site: Woodlands of North America, Africa and Eurasia
Time Period: Late Miocene-Modern (10 million-10,000 years ago)
Diet: Carnivore
Size:5 feet long and 50-75 pounds

Tarpan

Tarpan Prehistoric Mammal

Fossil Site: Plains of Eurasia
Time Period:
Diet: Grass
Size:5 feet tall and 1,000 pounds

Didelphodon

Didelphodon Prehistoric Mammal

Fossil Site: Woodlands of North America
Time Period:
Diet: Insects and small animals
Size:one foot long and a few pounds

Metamynodon

Metamynodon Prehistoric Mammal

Fossil Site: Swamps and rivers of North America
Time Period: Late Eocene-Early Oligocene (35-30 million years ago)
Diet: Herbivore
Size:13 feet long and 2-3 tons

Teinolophos

Teinolophos Prehistoric Mammal

Fossil Site: Woodlands of Australia
Time Period:
Diet: Insects
Size:6 inches long and a few ounces

Dinictis

Dinictis Prehistoric Mammal

Fossil Site: Plains of North America
Time Period:
Diet: Carnivore
Size:4 feet long and 100 pounds

Miacis

Miacis Prehistoric Mammal

Fossil Site: Woodlands of Europe
Time Period: Late Paleocene (55 million years ago)
Diet: Insects, small animals and eggs
Size:8 inches long and 1-2 pounds

Teleoceras

Teleoceras Prehistoric Mammal

Fossil Site: Plains of North America
Time Period: Late Miocene (5 million years ago)
Diet: Herbivore
Size:13 feet long and 2-3 tons

Dinofelis

Dinofelis Prehistoric Mammal

Fossil Site: Woodlands of Europe, Asia, Africa and North America
Time Period: Pliocene-Pleistocene (5-1 million years ago)
Diet: Carnivore
Size:5 feet long and 250 pounds

Miohippus

Miohippus Prehistoric Mammal

Fossil Site: Plains of North America
Time Period: Late Eocene-Early Oligocene (35-25 million years ago)
Diet: Herbivore
Size:4 feet long and 100 pounds

Tetralophodon

Tetralophodon Prehistoric Mammal

Fossil Site: Woodlands worldwide
Time Period: Late Miocene-Pliocene (3-2 million years ago)
Diet: Herbivore
Size:8 feet high and one ton

Dinohippus

Dinohippus Prehistoric Mammal

Fossil Site: Plains of North America
Time Period: Late Miocene (13-5 million years ago)
Diet: Herbivore
Size:5 feet tall and 750 pounds

Moeritherium

Moeritherium Prehistoric Mammal

Fossil Site: Swamps of northern Africa
Time Period: Late Eocene-Early Oligocene (37-30 million years ago)
Diet: Herbivore
Size:3 feet long and 500 pounds

Thalassocnus

Thalassocnus Prehistoric Mammal

Fossil Site: Shorelines of South America
Time Period: Late Miocene-Pliocene (10-2 million years ago)
Diet: Aquatic plants
Size:6 feet long and 300-500 pounds

Diprotodon

Diprotodon Prehistoric Mammal

Fossil Site: Plains of Australia
Time Period:
Diet: Herbivore
Size:12 feet long and two tons

Morganucodon

Morganucodon Prehistoric Mammal

Fossil Site: Woodlands of Europe, Asia and North America
Time Period:
Diet: Insects
Size:four inches long and one ounce

Thylacoleo

Thylacoleo Prehistoric Mammal

Fossil Site: Plains of Australia
Time Period: Pleistocene-Modern (2 million-40,000 years ago)
Diet: Carnivore
Size:5 feet long and 200 pounds

Canis diris

Canis diris Prehistoric Mammal

Fossil Site: Plains of North America
Time Period: Pleistocene-Modern (2 million-10,000 years ago)
Diet: Carnivore
Size:5 feet long and 150-200 pounds

Moropus

Moropus Prehistoric Mammal

Fossil Site: Plains of North America
Time Period: Early-Middle Miocene (23-15 million years ago)
Diet: Herbivore
Size:10 feet long and 1,000 pounds

Thylacosmilus

Thylacosmilus Prehistoric Mammal

Fossil Site: Woodlands of South America
Time Period: Miocene-Pliocene (10 million to 2 million years ago)
Diet: Carnivore
Size:six feet long and 500 pounds

Docodon

Docodon Prehistoric Mammal

Fossil Site: Woodlands of North America
Time Period:
Diet: Omnivorous
Size:4 inches long and one ounce

Mylodon

Mylodon Prehistoric Mammal

Fossil Site: Plains of South America
Time Period: Pleistocene-Modern (2 million-10,000 years ago)
Diet: Herbivore
Size:10 feet long and 500 pounds

Titanotylopus

Titanotylopus Prehistoric Mammal

Fossil Site: Plains of North America and Eurasia
Time Period: Pleistocene (3 million-300,000 years ago)
Diet: Herbivore
Size:13 feet long and 1,000-2,000 pounds

Doedicurus

Doedicurus Prehistoric Mammal

Fossil Site: Swamps of South America
Time Period: Pleistocene-Modern (2 million-10,000 years ago)
Diet: Herbivore
Size:13 feet long and one ton

Myotragus

Myotragus Prehistoric Mammal

Fossil Site: Mediterranean islands of Majorca and Minorca
Time Period: Pleistocene-Modern (2 million-5,000 years ago)
Diet: Herbivore
Size:4 feet long and 100 pounds

Tomarctus

Tomarctus Prehistoric Mammal

Fossil Site: Plains of North America
Time Period: Middle Miocene (15 million years ago)
Diet: Carnivore
Size:four feet long and 30-40 pounds

Dorudon

Dorudon Prehistoric Mammal

Fossil Site: Seashores of North America and northern Africa
Time Period: Late Eocene (41-33 million years ago)
Diet: Fish and mollusks
Size:16 feet long and half a ton

Necrolemur

Necrolemur Prehistoric Mammal

Fossil Site: Woodlands of western Europe
Time Period: Middle-Late Eocene (45-35 million years ago)
Diet: Insects
Size:one foot long and a few pounds

Toxodon

Toxodon Prehistoric Mammal

Fossil Site: Plains of South America
Time Period: Pleistocene-Modern (3 million-10,000 years ago)
Diet: Grass
Size:9 feet long and 1,000 pounds

Dryopithecus

Dryopithecus Prehistoric Mammal

Fossil Site: Woodlands of Eurasia and Africa
Time Period: Middle Miocene (15-10 million years ago)
Diet: Fruit
Size:2 feet long and 25 pounds

Nesodon

Nesodon Prehistoric Mammal

Fossil Site: Woodlands of South America
Time Period: Late Oligocene-Middle Miocene (29-16 million years ago)
Diet: Herbivore
Size:5 to 10 feet long and 200 to 1,000 pounds

Triconodon

Triconodon Prehistoric Mammal

Fossil Site: Woodlands of Asia and Western Europe
Time Period:
Diet: Omnivorous
Size:one foot long and one or two pounds

Dusicyon

Dusicyon Prehistoric Mammal

Fossil Site: Falkland Islands
Time Period: Pleistocene-Modern (2 million-100 years ago)
Diet: Birds, insects and shellfish
Size:3 feet long and 25 pounds

Nimravus

Nimravus Prehistoric Mammal

Fossil Site: Woodlands of North America
Time Period: Oligocene-Early Miocene (30 to 20 million years ago)
Diet: Carnivore
Size:4 feet long and 100 pounds

Trigonias

Trigonias Prehistoric Mammal

Fossil Site: Plains of North America and western Europe
Time Period: Late Eocene-Early Oligocene (35-30 million years ago)
Diet: Herbivore
Size:8 feet long and 1,000 pounds

Dwarf Elephant

Dwarf Elephant Prehistoric Mammal

Fossil Site: Small islands of the Mediterranean Sea
Time Period: Pleistocene-Modern (2 million-10,000 years ago)
Diet: Herbivore
Size:6 feet long and 500 pounds

Notharctus

Notharctus Prehistoric Mammal

Fossil Site: Woodlands of North America
Time Period: Early-Middle Eocene (55-40 million years ago)
Diet: Fruits, seeds and insects
Size:18 inches long and a few pounds

Uintatherium

Uintatherium Prehistoric Mammal

Fossil Site: Plains of North America
Time Period:
Diet: Herbivore
Size:13 feet long and 1-2 tons

Elasmotherium

Elasmotherium Prehistoric Mammal

Fossil Site: Plains of Eurasia
Time Period: Pleistocene-Modern (2 million-10,000 years ago)
Diet: Grass
Size:20 feet long and 3-4 tons

Nuralagus

Nuralagus Prehistoric Mammal

Fossil Site: Island of Minorca
Time Period: Pliocene (5-3 million years ago)
Diet: Herbivore
Size:4 feet long and 25 pounds

Wakaleo

Wakaleo Prehistoric Mammal

Fossil Site: Plains of Australia
Time Period: Early-Middle Miocene (23-15 million years ago)
Diet: Carnivore
Size:30 inches long and 5-10 pounds

Embolotherium

Embolotherium Prehistoric Mammal

Fossil Site: Plains of central Asia
Time Period: Late Eocene-Early Oligocene (35-30 million years ago)
Diet: Herbivore
Size:15 feet long and 1-2 tons

Obdurodon

Obdurodon Prehistoric Mammal

Fossil Site: Swamps of Australia and South America
Time Period: Miocene (23-5 million years ago)
Diet: Insects and crustaceans
Size:one foot long and a few pounds

Woolly Mammoth

Woolly Mammoth Prehistoric Mammal

Fossil Site: Plains of North America and Eurasia
Time Period: Pliocene-Modern (5 million-10,000 years ago)
Diet: Herbivore
Size:13 feet long and 5-7 tons

Enaliarctos

Enaliarctos Prehistoric Mammal

Fossil Site: West coast of North America
Time Period: Late Oligocene-Early Miocene (25-20 million years ago)
Diet: Fish, shellfish and meat
Size:5 feet long and 300-500 pounds

Oligokyphus

Oligokyphus Prehistoric Mammal

Fossil Site: Woodlands of Asia, Europe and North America
Time Period:
Diet: Omnivorous
Size:one foot long and one pound

Woolly Rhino

Woolly Rhino Prehistoric Mammal

Fossil Site: Plains of northern Eurasia
Time Period: Pleistocene-Modern (3 million-10,000 years ago)
Diet: Grass
Size:11 feet long and 1,000-2,000 pounds

Entelodon

Entelodon Prehistoric Mammal

Fossil Site: Plains of Eurasia
Time Period: Late Eocene-Middle Oligocene (37-27 million years ago)
Diet: Omnivorous
Size:10 feet long and 1,000 pounds

Oreopithecus

Oreopithecus Prehistoric Mammal

Fossil Site: Islands of southern Europe
Time Period: Late Miocene (10-5 million years ago)
Diet: Plants, nuts and fruit
Size:4 feet tall and 50-75 pounds

Xenosmilus

Xenosmilus Prehistoric Mammal

Fossil Site: Plains of North America
Time Period: Pleistocene (1 million years ago)
Diet: Carnivore
Size:4 feet long and a few hundred pounds

Eobasileus

Eobasileus Prehistoric Mammal

Fossil Site: Plains of North America
Time Period: Middle-Late Eocene (40-35 million years ago)
Diet: Herbivore
Size:12 feet long and one ton

Orohippus

Orohippus Prehistoric Mammal

Fossil Site: Woodlands of North America
Time Period: Early Eocene (52-45 million years ago)
Diet: Herbivore
Size:2 feet long and 50 pounds

Zalambdalestes

Zalambdalestes Prehistoric Mammal

Fossil Site: Woodlands of central Asia
Time Period:
Diet: Insects
Size:8 inches long and a few ounces

Eomaia

Eomaia Prehistoric Mammal

Fossil Site: Woodlands of Asia
Time Period:
Diet: Insects
Size:6 inches long and a few ounces

Ouranopithecus

Ouranopithecus Prehistoric Mammal

Fossil Site: Plains of southern Europe
Time Period: Late Miocene (8 million years ago)
Diet: Fruits, nuts and seeds
Size:5 feet long and 150-200 pounds

Zygorhiza

Zygorhiza Prehistoric Mammal

Fossil Site: Shores of North America
Time Period: Late Eocene (40-35 million years ago)
Diet: Fish and squids
Size:20 feet long and one ton

Eosimias

Eosimias Prehistoric Mammal

Fossil Site: Woodlands of Asia
Time Period: Middle Eocene (45-40 million years ago)
Diet: Insects
Size:A few inches long and one ounce

Pakicetus

Pakicetus Prehistoric Mammal

Fossil Site: Shores of central Asia
Time Period: Early Eocene (50 million years ago)
Diet: Fish
Size:3 feet long and 50 pounds