Cenozoic
Paleocene
Late-surviving species of dromaeosaur. Velociraptorinae.
Relative of Coryphodon that has adapted to a truly hippopotamus-like aquatic lifestyle. Coryphodontidae.
Primitive stem-bat with incipient wings used mainly for gliding. Stem Chiroptera.
Eocene
A large, sabre-toothed mesonychian. Mesonychidae.
A uintathere with antler-like ossicones. Dinocerata.
4 horned brontothere. Brontotheriidae.
A kind of primitive bat that has convergently become a vampire-like blood-drinker. Palaeochiropterygidae.
An arboreal cimolestan which is adapted for gliding. Cimolesta.
Primitive archaeocete with large hands for foraging on the seafloor. Protocetidae.
A kind of Creodont which is better adapted for running. Hyaenodontidae.
Oligocene
A relative of Arsinoitherium which has only a single horn. Arsinoitheriidae.
Hesperocyonine dog which has adapted to a herbivorous, panda-like lifestyle. Hesperocyoninae.
A tiny hesperocyonine which is similar in size to a stoat, catching small animals in their burrows. Hesperocyoninae.
A ziphosuchian which has limbs better adapted to running. Sebecidae.
A large, okapi-like three-toed horse. Anchitheriinae.
Miocene
A giant species of Moray Eel, perhaps 5 meters long. Muraenidae.
A reef dwelling puffer fish which is a good deal larger than any living species, maybe 1.6 meters long. Tetraodontidae.
A Protoceratid Artiodactyl which has horns looking somewhat like the dual crests of Dilophosaurus. Protoceratidae.
A Miocene Cockatoo from the Riversleigh deposits of Australia, which is a rainforest dweller converging on the modern Palm Cockatoo in the shape and size of its bill. Cacatuidae.
A three-horned primitive rhinoceros. Rhinocerotidae.
A dog which is much like a big-cat in its predatory adaptations, an ambush hunter. Borophaginae.
An ape which has convergently evolved habitual bipedalism. Dryopithecini.
A relative of Tsaidamotherium in which the larger horn has become a thickened rounded helmet for head-butting. Ovibovini.
A raptorial sperm whale which has a long, streamlined body. Physeteroidea.
A tuskless gomphothere, related to Gnathobelodon. Gomphotheridae.
Pliocene
An Australian Presbyornithid which is adapted even further to being terrestrial than Wilaru. Presbyornithidae.
A relative of Paranthropus which attains a giant-like stature of 9 feet. Hominidae.
An externally armoured ground-sloth, with thick, tubercled skin covered in small osteoderms. Mylodontinae.
A primitive giraffe with a single, unicorn-like ossicone. Giraffidae.
A horned gopher with only a single nose horn. Mylagaulidae.
A large baboon which resembles a Mandrill, but has large, flared cheek flanges. Papionini.
Pleistocene
A small-statured hominid that occurs in Russia and Siberia alongside the Denisovans. Homo-habilis-like Hominin.
A giant varanid that occurs in New Guinea, similar in size to Megalania. Varanidae.
A giant carnivorous Mediterranean-island dormouse. Leithiinae.
A pygmy-elephant which has oversized tusks, a Mediterranean island form. Paleoloxodon sp.
A teratorn which converges on a stork in its habits and adaptations. Teratornithidae.
A rare example of a smaller ice age bird that has become extinct, a New Guinean Waxbill finch which has a large robust bill for cracking seeds. Estrildidae.
An ice-aged tapir which has a trunk that is longer and more dexterous than modern tapirs. Tapiridae.
Holocene
A wide-billed, grazing moa-nalo, Hawaii. Anatinae.
