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Over 50 genera (~ 83%) of megafauna in South and North America went extinct during the Pleistocene. [42] most mega mammals (>1000kg) and large mammals (>40kg) went extinct by the end of the Late Pleistocene. [43] During this period there was a major cooling event called the Younger Dryas and the Clovis culture of capturing game became more ...
The Late Pleistocene saw the extinction of many mammals weighing more than 40 kilograms (88 lb), including around 80% of mammals over 1 tonne. The proportion of megafauna extinctions is progressively larger the further the human migratory distance from Africa, with the highest extinction rates in Australia, and North and South America.
Found in the late Pleistocene to early Holocene of Serra do Ramalho, Brazil but without direct datation. [8] Hoplophorus euphractus: Eastern Brazil Most recent remains at Toca do Serrote do Artur, Brazil dated to 6660-4880 BCE. [4] Neosclerocalyptus ornatus [9] Southern South America: Most recent remains in Paraguay dated to 5120 BCE. [10 ...
Late Quaternary prehistoric birds are avian taxa that became extinct during the Late Quaternary – the Late Pleistocene or Early Holocene – and before recorded history, specifically before they could be studied alive by ornithological science. They had died out before the period of global scientific exploration that started in the late 15th ...
Hemiauchenia [1] is a genus of lamine camelids that evolved in North America in the Miocene period about 10 million years ago. This genus diversified and entered South America in the Late Pliocene about three to two million years ago, as part of the Great American Biotic Interchange. The genus became extinct at the end of the
Macrauchenia became extinct as part of the end-Pleistocene extinction event at the end of the Late Pleistocene, around 12–10,000 years ago, along with most large mammals native to the Americas. The extinctions followed the arrival of humans in the Americas , [ 34 ] which in South America occurred at least 14,500 years ago (as evidenced by ...
An extinct beaver species: Western North America: Late Miocene to Early Pleistocene [1] Castoroides: Giant beavers: North America: Up to 100 kg (220 lb) Pleistocene [1] Ceratogaulus: Horned gophers: North America: Smallest horned mammal: Late Miocene to Pliocene [2] Spelaeomys: S. florensis: A large cave rat: Flores-Extinct by 1500 [3] "Giant ...
Paul Martin at Rampart Cave, home of the Shasta ground sloth in Grand Canyon, ca. 1975. Paul Schultz Martin (born in Allentown, Pennsylvania in 1928, died in Tucson, Arizona September 13, 2010) [1] [2] was an American geoscientist at the University of Arizona who developed the theory that the Pleistocene extinction of large mammals worldwide was caused by overhunting by humans. [3]