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Archaeotherium (Ancient Greek: αρχαιοθήριον, meaning "ancient beast") is an extinct genus of entelodont artiodactyl endemic to North America during the...

chopping surface. They range from chisel-shaped in some entelodonts (Archaeotherium) to massive and rounded in others (Daeodon). The canines have thick...

Paraentelodon rather than to earlier North American entelodonts, like Archaeotherium, as evidence for Daeodon being a descendant from a Late Oligocene immigration...

turtle (cameo) Oligocene-Miocene: 32-19 million years ago North America: Archaeotherium, Hyaenodon, Dinictis, Mesohippus, Poebrotherium, Subhyracodon, Moropus...

Archaeotherium skull from the White River Badlands on display at the Badlands Dinosaur Museum in North Dakota...

†Cypretherium Foss, 2007 Species: †C. coarctatum Binomial name †Cypretherium coarctatum (Cope, 1889) Synonyms Entelodon coarctatum Archaeotherium coarctatum...

glimpse of life in the area 33 million years ago. Alligator (Crocodilian) Archaeotherium (Entelodont) Dinictis (Nimravid) Eporeodon (Oreodont) Eusmilus (Nimravid)...

entelodont Archaeotherium. Remains of partial Poebrotherium carcasses have been found fossilized, and appear to have been killed and cached by Archaeotherium, the...

America inhabited a semiarid prairie home and included entelodonts like Archaeotherium, camelids (such as Poebrotherium), running rhinoceratoids, three-toed...

numerous fossil dinosaur articles – that refer to tracks or trackways. Archaeotherium Arthropleura Chirotherium; (only a related species known) Climactichnites...

age animals such as the Woolly Mammoth and Smilodon, living alongside Archaeotherium, which lived during the Eocene 16 million years before the Ice Age....

Allosaurus, Stegosaurus, Diplodocus, Edmontosaurus, Maiasaura, Megacerops, Archaeotherium, Hyaenodon, Merycoidodon, Stenomylus, Merycochoerus, Moropus, Dinohyus...

Anisodon (identified by its synonym Chalicotherium grande) Archaeopteropus Archaeotherium mortoni Arctodus simus Arsinoitherium zitteli Arvernoceros Astrapotherium...

predatory mammals, such as the conspecific Hyaenodon, Dinictis, and Archaeotherium with which it probably shared an apex-predator role in its environment...

Genus Species Clade Epoch Image Notes †Archaeotherium †A. mortoni (type) †Entelodontidae Oligocene †Daeodon †D. shoshonensis (type) †D. humerosum? †Entelodontidae...

wide array of other animals including: the entelodonts Daeodon and Archaeotherium; the deer-like Leptomeryx and Protoceras; the rodents Ischyromys, Eumys...

Messelobunodon Genus Diacodexis Family Entelodontidae (Entelodonts) Genus Archaeotherium Genus Brachyhyops Genus Paraentelodon Genus Cypretherium Genus Daeodon...

clade Entelodontidae, which also includes members such as the Oligocene Archaeotherium and Miocene Daeodon. Brachyhyops was named by Colbert (1937) [also said...

comparable form †Apternodus †Archaeocyon †Archaeocyon leptodus †Archaeotherium †Archaeotherium mortoni †Arctocyon †Ardynomys †Ardynomys saskatchewensis †Averrhoites...

†Aphelops Aquila †Aquila chrysaetos Arbacia †Archaeocyon †Archaeohippus †Archaeotherium Architectonica †Arctodus Ardea †Ardea herodias Argobuccinum †Ascosphaera...