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Dromomerycidae
The Dromomerycidae is an extinct family of Neogene ruminants belonging to the infraorder Pecora. Dromomerycids, known by two subfamilies, were endemic to North America from the later early Miocene up to the early Pliocene (~5 Ma), leaving no descendants. Dromomerycidae has a long history of uncertain taxonomic affiliations due to its superficial resemblances with the Eurasian Neogene Palaeomerycidae and were traditionally classified as subfamilies within the family. However, recent research differentiates the dromomerycids from the Giraffomorpha (Giraffoidea and Palaeomerycoidea) by the lack of sutures on the skull roof that typically make up the ossicones of the later clade. The similar resemblances of the appendages therefore could be the result of parallel evolution. The dromomerycids are characterized by unbranched and nondeciduous appendages above the orbits of the eyes. These traits may have been typically characteristic of males but appear to have been present in both ge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aletomeryx
''Aletomeryx'' is an extinct genus of Artiodactyla, of the family Dromomerycidae, endemic to North America from the early Miocene epoch (Hemingfordian stage) 20.6—16.3 Annum, Ma, existing for approximately . Taxonomy ''Aletomeryx'' was named by Lull (1920). It is the type genus of Aletomerycinae, Aletomerycini. It was assigned to Dromomerycidae by Lull (1920) and Janis and Manning (1998); and to Aletomerycini by Prothero and Liter (2007).D. R. Prothero and M. R. Liter. 2007. Family Palaeomerycidae. in D. R. Prothero and S. Foss (eds.), The Evolution of Artiodactyls 241-248 Fossil distribution Fossils have been recovered from the Midway Site in Florida, Saskatchewan, Boron, California, and several sites in Nebraska and Wyoming. References {{Taxonbar, from=Q4716516 Palaeomerycidae Miocene Artiodactyla Miocene mammals of North America Prehistoric Artiodactyla genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pediomeryx
''Pediomeryx'' is an extinct genus of artiodactyl, of the family Dromomerycidae, endemic to North America. It lived during the Late Miocene 10.3—4.9 Ma, existing for approximately . Fossils have been recovered from the Midway Site in Florida, the Gray Fossil Site in northeast Tennessee, several sites in Nebraska and Wyoming, Saskatchewan, and Boron, California. They were comparable in size to red deer The red deer (''Cervus elaphus'') is one of the largest deer species. A male red deer is called a stag or hart, and a female is called a hind. The red deer inhabits most of Europe, the Caucasus Mountains region, Anatolia, Iran, and parts of wes ..., with most specimens weighing 100–200 kg but surpassing 400 kg in the case of ''P. figginsi''. References Palaeomerycidae Zanclean extinctions Miocene Artiodactyla Miocene mammals of North America Prehistoric cervoids Prehistoric Artiodactyla genera Tortonian first appearances Fossil taxa described in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Procranioceras
''Procranioceras'' is an extinct genus of Artiodactyla, of the family Dromomerycidae, endemic to North America. It lived during the Middle Miocene, 16.0—13.6 Ma, existing for approximately . Fossils have been found from Florida, Saskatchewan, and Nebraska Nebraska () is a state in the Midwestern region of the United States. It is bordered by South Dakota to the north; Iowa to the east and Missouri to the southeast, both across the Missouri River; Kansas to the south; Colorado to the southwe .... References Palaeomerycidae Miocene Artiodactyla Serravallian genus extinctions Miocene mammals of North America Prehistoric Artiodactyla genera Burdigalian genus first appearances Fossil taxa described in 1937 {{Paleo-eventoedungulate-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palaeomerycidae
The Palaeomerycidae are an extinct family of ruminants in the order Artiodactyla. Palaeomerycids lived in North America, Europe, Africa and Asia from 33 to 4.9 million years ago (from the Late Eocene to Pliocene epochs), existing for about 28 million years; one species was also reported from South America, but its identity as a palaeomerycid was subsequently disputed. Specimens of '' Amphitragulus'', the earliest known genus, have been found in Aragon (Spain), Ronheim (Germany), Sardinia (Italy), France, and Kazakhstan and range from 33 to 15.97 million years old. Fossils of '' Lagomeryx'' and ''Palaeomeryx feignouxi'' were recovered in Germany and Slovakia from the Middle Eocene. The oldest known North American specimen, '' Barbouromeryx'', was discovered in Scotts Bluff, Nebraska, and estimated at 23.03 million years old. Palaeomerycids such as ''Cranioceras'' and other Dromomerycinae continued to live in North America until the early Pliocene. Description Palaeomerycids w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palaeomerycoidea
The Palaeomerycidae are an extinct family of ruminants in the order Artiodactyla. Palaeomerycids lived in North America, Europe, Africa and Asia from 33 to 4.9 million years ago (from the Late Eocene to Pliocene epochs), existing for about 28 million years; one species was also reported from South America, but its identity as a palaeomerycid was subsequently disputed. Specimens of ''Amphitragulus'', the earliest known genus, have been found in Aragon (Spain), Ronheim (Germany), Sardinia (Italy), France, and Kazakhstan and range from 33 to 15.97 million years old. Fossils of ''Lagomeryx'' and ''Palaeomeryx feignouxi'' were recovered in Germany and Slovakia from the Middle Eocene. The oldest known North American specimen, '' Barbouromeryx'', was discovered in Scotts Bluff, Nebraska, and estimated at 23.03 million years old. Palaeomerycids such as ''Cranioceras'' and other Dromomerycinae continued to live in North America until the early Pliocene. Description Palaeomerycids wer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dromomeryx
''Dromomeryx'' is an extinct genus of Artiodactyla The even-toed ungulates (Artiodactyla , ) are ungulates—hoofed animals—which bear weight equally on two (an even number) of their five toes: the third and fourth. The other three toes are either present, absent, vestigial, or pointing poster ..., of the family Palaeomerycidae, endemic to North America. References Palaeomerycidae Miocene even-toed ungulates Miocene genus extinctions Miocene mammals of North America Prehistoric even-toed ungulate genera {{Paleo-eventoedungulate-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Childs Frick
Childs Frick (March 12, 1883 - May 8, 1965) was an American vertebrate paleontologist. He was a trustee of the American Museum of Natural History and a major benefactor of its Department of Paleontology, which in 1916 began a long partnership with him. He established its Frick Laboratory. He also made many expeditions to the American West, and his efforts helped to shape an understanding of the evolution of North American camels. By employing many field workers, Frick accumulated over 200,000 fossil mammals, which later were donated to the Museum. Biography Frick was born in Pittsburgh, Pennsylvania, the son of the coke and steel magnate Henry Clay Frick (1849–1919) and Adelaide Howard Childs. He grew up at the family's Pittsburgh estate, Clayton, although the family later moved in 1905 to New York City. He developed his lifelong love for animals playing in the wooded grounds and steep hills behind Clayton, later dedicated as Frick Park. He attended Shady Side Academy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pliocene Extinctions
The Pliocene ( ; also Pleiocene) is the epoch in the geologic time scale that extends from 5.333 million to 2.58See the 2014 version of the ICS geologic time scale million years ago. It is the second and most recent epoch of the Period in the . The Pliocene follows the Epoch and is followed by the |
Miocene First Appearances
The Miocene ( ) is the first geological epoch of the Neogene Period and extends from about (Ma). The Miocene was named by Scottish geologist Charles Lyell; the name comes from the Greek words (', "less") and (', "new") and means "less recent" because it has 18% fewer modern marine invertebrates than the Pliocene has. The Miocene is preceded by the Oligocene and is followed by the Pliocene. As Earth went from the Oligocene through the Miocene and into the Pliocene, the climate slowly cooled towards a series of ice ages. The Miocene boundaries are not marked by a single distinct global event but consist rather of regionally defined boundaries between the warmer Oligocene and the cooler Pliocene Epoch. During the Early Miocene, the Arabian Peninsula collided with Eurasia, severing the connection between the Mediterranean and Indian Ocean, and allowing a faunal interchange to occur between Eurasia and Africa, including the dispersal of proboscideans into Eurasia. During the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
