Taxobox name Protylopus fossil range Fossil range Middle Eocene Late Eocene regnum Animal ia phylum Chordata classis Mammalia ordo Artiodactyla familia Oromerycidae genus Protylopus genus authority Wortman, 1898 subdivision ranks Species subdivision P. petersoni type species type P. annectens P. pearsonensis P. robustus P. stocki Protylopus is an extinct genus of camel , lived during middle to late Eocene some 45 40 million years ago in North America . The oldest camel known, it was also the smallest, reaching a length of convert 80 cm ft , and probably weighing around convert 2.6 kg lb . Based on its teeth , it probably fed on the soft leaves of forest plants. Protylopus s front legs were shorter than the hind legs, and ended in four toed feet. The hind legs also ended in four toes, but most of the weight was carried by the third and fourth, so it may have raised itself up on its back legs like the modern day gerenuk antelope to feed. The shape of the toes suggests that the animal possessed hooves, rather than the foot pads of modern camel s. ref name EoDP cite book editor Palmer, D. year 1999 title The Marshall Illustrated Encyclopedia of Dinosaurs and Prehistoric Animals publisher Marshall Editions location London page 275 isbn 1 84028 152 9 ref References reflist Category Prehistoric tylopods Category Eocene mammals Category Prehistoric mammals of North America Category Transitional fossils paleo eventoedungulate stub es Protylopus it Protylopus ... more details
its predecessor Protylopus , but at convert 90 cm ft in height, it was roughly the size of a modern ... more built for speed than the feet of Protylopus . Despite this apparent adaptation to the open ... more details
, in present day North America . Among the earliest camelids was the rabbit sized Protylopus , which ... Titanolypus and modern Camelus . Protylopus Late Eocene Earliest member of the camelids Stenomylus ... more details
Not to be confused with the Mammoth Hot Springs in Yellowstone National Park The Mammoth Site is a museum and paleontological site near Hot Springs, South Dakota . It contains the remains of fauna and flora preserved by entrapment in a karst sinkhole during the Pleistocene era. Mammoth bones were found at the site in 1974, and a museum and building enclosing the site were established. The museum now contains an extensive collection of mammoth remains. Research and excavations at the site are ongoing. Formation File MammothFootImpressions25.jpg thumb right 220px Cross section of mammoth footprint s at the Mammoth Site About 26,000 years ago the cavern at the site collapsed. The resulting steep sided hole, about 65 feet deep, was 120 by 150 wide at the surface. ref name geo cite web title Mammoth Site Geology url http www.mammothsite.com geology.html publisher The Mammoth Site of Hot Springs, South Dakota accessdate 2009 07 27 ref Warm Artesian aquifer artesian fed spring waters created a pond that was attractive to wildlife. Findings at the site include the remains of megafauna such as Giant short faced bear s along with those of Shrub ox shrub oxen , Protylopus American camel , llama , wolves , coyote s, birds, mink s, ferrets , prairie dogs , vole s, and Mole animal mole s. ref name nathist ref name northern cite web title Sout Dakota Ice Age mammals publisher Northern Illinois University url http www3.northern.edu natsource EARTH Iceage1.htm accessdate 2010 10 15 ref Invertebrate discoveries include several species of clam s, snail s, and slug s. ref cite web title A Rare Glimpse The following is a partial list of invertebrate remains recovered from the Mammoth Site. url http www.mammothsite.com invertebrates.html publisher The Mammoth Site of Hot Springs, South Dakota accessdate 2009 07 29 ref Over the course of the next 350 to 700 years, the hole filled with sediments and mammoth remains. ref name geo The remains of the living organisms in the site are not techn ... more details
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