Arctotherium angustidens Arctotherium angustidens Arctotherium angustidens Arctotherium angustidens Arctotherium angustidens Arctotherium angustidens Arctotherium angustidens
Arctotherium angustidens
Arctotherium angustidens
Arctotherium angustidens
Arctotherium angustidens
Arctotherium angustidens
Arctotherium angustidens
Arctotherium angustidens

Arctotherium angustidens

South American short-faced bear (Arctotherium Burmeister, 1879)

 

Order: Carnivora

Family: Ursidae

Dimensions: length - 3 m, height - 180 сm, weight - 600-1750 kg

Temporal range: Pleistocene - Holocene of South America (~1.1 Ma – 10 000 years ago)

A typical representative: Arctotherium angustidens Gervais and Ameghino, 1880

 

Arctotherium is an extinct genus of South American short-faced bears within Ursidae of the late Pliocene through the end of the Pleistocene. Their ancestors migrated from North America to South America during the Great American Interchange, following the formation of the Isthmus of Panama. They were endemic to South America, living from ~2.0–0.01 Ma, existing for approximately 1.99 million years. Their closest relatives were the North American short-faced bears of genus Arctodus. The closest living relative would be the spectacled bear. A skeleton of Arctotherium angustidens from Buenos Aires indicates big males of this species would have weighed 1.6 tonnes, standing 3.4 meters tall, making it the largest bear known. In contrast to their North American cousins, South American short-faced bears showed a trend of declining size and carnivory over time. This has been attributed to increased competition form other later-arriving or evolving carnivorans following the early dispersal of short-faced bears to South America. (The North American carnivorans that invaded South America, including short-faced bears and Smilodon, quickly dominated the predatory niches  formerly occupied by South America's native metatherian sparassodont and avian phorusrhacid carnivores.)

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South American short-faced bear (Arctotherium Burmeister, 1879)

 

Order: Carnivora

Family: Ursidae

Dimensions: length - 3 m, height - 180 сm, weight - 600-1750 kg

Temporal range: Pleistocene - Holocene of South America (~1.1 Ma – 10 000 years ago)

A typical representative: Arctotherium angustidens Gervais and Ameghino, 1880

 

Arctotherium is an extinct genus of South American short-faced bears within Ursidae of the late Pliocene through the end of the Pleistocene. Their ancestors migrated from North America to South America during the Great American Interchange, following the formation of the Isthmus of Panama. They were endemic to South America, living from ~2.0–0.01 Ma, existing for approximately 1.99 million years. Their closest relatives were the North American short-faced bears of genus Arctodus. The closest living relative would be the spectacled bear. A skeleton of Arctotherium angustidens from Buenos Aires indicates big males of this species would have weighed 1.6 tonnes, standing 3.4 meters tall, making it the largest bear known. In contrast to their North American cousins, South American short-faced bears showed a trend of declining size and carnivory over time. This has been attributed to increased competition form other later-arriving or evolving carnivorans following the early dispersal of short-faced bears to South America. (The North American carnivorans that invaded South America, including short-faced bears and Smilodon, quickly dominated the predatory niches  formerly occupied by South America's native metatherian sparassodont and avian phorusrhacid carnivores.)

Reviews (8):
Sergio
06.08.2021
Can you do a white background reconstruction of these animals: Ursus kudarensis, Ursus savini rossicus, Arctotherium tarijense, Arctotherium bonariense, Bison schoetensacki, Bison menneri, Capromeryx minor, Castoroides dilophidus, Equus ferus mexicanus, Equus ferus pacificus, Euceratherium collinum,
Haringtonhippus francisci, Hemiauchenia gracilis,Mammut pacificus, Miracionyx inexpectatus, Nohochichak xibalbahkah, Odocoileus lucasi, Praeovibos priscus, Protocyon troglodytes, Stockoceros conklingi, Tapirus haysii, Tetrameryx mooseri, Tetrameryx shuleri, Tetrameryx tacubayensis, Camelus moreli, Palaeolama mirimifica, Camelus concordiae, Xibalbaonyx microcaninus, Xibalbaonyx oviceps? I would love see it.
Аннаэйра
27.06.2020
Забавная опечатка: "(~1.1 Ma – 10 years ago)". :) А реконструкция вышла очень здоровская! Особенно второй рисунок хорош, мишка прямо как живой!
Ali
06.06.2020
از نظر من خرس کوتاهچهره بهترین حیوان این وب سایت هست راستی لینک دانلود این وبسایتو بزارین مث وبسایتای دیگه
112233
01.01.2019
i love this website as it gives us life like restoration of animals from the cenzoic era
Митрич
06.11.2018
Бедные южноамериканские "аборигены", как они могли выжить, если по их душу кроме смилодонов, ужасных волков еще и эти медведи-упыри притащились!!!
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