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Illustration of the first specimen of Megatherium americanum from 1796 Life illustration of Megatherium americanum from 1863, depicting it with a short trunk. The earliest specimen of Megatherium americanum was discovered in 1787 by Manuel de Torres, a Dominican friar and naturalist, from a ravine on the banks of the Lujan River in what is now northern Argentina, which at the time was part of ...
The Gray Fossil Site is a deposit of laminated clay and silt sediments laid down in an ancient lake that formed within a sinkhole. The deposit is oval in shape, covering an area of roughly 220 meters by 180 meters and ranging in depth from about 7 meters to 39 meters deep.
The Page–Ladson archaeological and paleontological site is a deep sinkhole in the bed of the karstic Aucilla River (between Jefferson and Taylor counties in the Big Bend region of Florida) that has stratified deposits of late Pleistocene and early Holocene animal bones and human artifacts.
The Page/Ladson site, which was examined again in 2012-2014 by a group sponsored by the Center for the Study of First Americans, [12] is one of the best documented and earliest of pre-Clovis culture sites in North America. As of 2006, the Sloth Hole site was "believed to be one of the three oldest Clovis sites in the Americas."
Scientists have uncovered evidence of ancient humans engaged in a deadly face-off with a giant sloth, showing for the first time how our ancestors might have tackled such a formidable prey.
Nothrotheriops is a genus of Pleistocene ground sloth found in North America, from what is now central Mexico to the southern United States. [1] This genus of bear-sized xenarthran was related to the much larger, and far more famous Megatherium, although it has recently been placed in a different family, Nothrotheriidae. [2]
Ground sloths are a diverse group of extinct sloths in the mammalian superorder Xenarthra. They varied widely in size with the largest, belonging to genera Lestodon, Eremotherium and Megatherium, being around the size of elephants. Ground sloths represent a paraphyletic group, as living tree sloths are thought to have evolved from ground sloth ...
Two-thirds of the world’s more than 300 sinkholes are in China, scattered throughout the country’s west - with 30 known tiankeng, Guangxi province in the south has more of of them than ...