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Anoplotherium was the first fossil artiodactyl genus to be named, with a history dating back to 1804. It lived in Europe as part of the endemic family Anoplotheriidae during the late Eocene-earliest Oligocene.
Archaeotherium fossils are most common in the White River Formation of the Great Plains, but they have also been found in the John Day Basin of Oregon and the Trans-Pecos area of Texas. Archaeotherium's fossils come from North America, between the Priabonian and Rupelian stages of the Eocene and Oligocene (35–28 million years ago
Artiocetus' name arises from a combination of cetus and artiodactyl, as this fossil was the first to show that early whales possessed artiodactyl-like ankles. Artiocetus belongs to the infraorder Cetacea, which includes whales, dolphins and porpoises. Cetus is a Latinized Greek word literally meaning "sea monster" and is used in biological ...
Unlike Pleistocene fossil genera in the Americas in early palaeontological history such as Megatherium and Mammut, Palaeotherium and Anoplotherium were not found in surface-level deposits but embedded in deeper, harder rock deposits dating to the Eocene. People in Paris had been previously familiar with animal skeletons being in their area for ...
Anoplotherium commune skull, National Museum of Natural History, France. The research history of Anoplotherium spans back to 1804 when Georges Cuvier first described the fossils of this extinct artiodactyl and named the genus after describing Palaeotherium, making it one of the first fossil mammal genera to be described as well as having one of the earliest official taxonomic authorities.
Climacoceras (from Greek for "ladder horns") is a genus of extinct artiodactyl ungulates that lived in Africa and Europe during the Miocene.The members of Climacoceras were related to giraffes, and the genus was formerly placed within the Giraffidae, but is now placed in the Climacoceratidae, a sister group within the superfamily Giraffoidea.
The latter fossil is suggested to prove the presence of a fused cubonavicular bone in P. renevieri. The fused cubonavicular bone trait has also been reported in Amphimeryx , which appeared after Pseudamphimeryx and is known from postcranial fossils from multiple localities, and is also generally a defining trait of ruminants in an instance of ...
Merycoidodon ("ruminating teeth") is an extinct genus of herbivorous artiodactyl of the family Merycoidodontidae, more popularly known by the name Oreodon ("hillock teeth"). It was endemic to North America during the Middle Eocene to Middle Miocene (46—16 mya ) existing for approximately 30 million years .