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Arctodus is an extinct genus of short-faced bear that inhabited North America during the Pleistocene (~2.5 Mya until 12,800 years ago). There are two recognized species: the lesser short-faced bear (Arctodus pristinus) and the giant short-faced bear (Arctodus simus).
The cave bear (Ursus spelaeus) is a prehistoric species of bear that lived in Europe and Asia during the Pleistocene and became extinct about 24,000 years ago during the Last Glacial Maximum. Both the word cave and the scientific name spelaeus are used because fossils of this species were mostly found in caves .
The second largest prehistoric pinniped is Gomphotaria pugnax with a skull length of nearly 47 cm (19 in). [155] One of the largest of prehistoric otariids is Thalassoleon, comparable in size to the biggest extant fur seals. An estimated weight of T. mexicanus is no less than 295–318 kg (650–701 lb). [158]
Castoroides (Latin: "beaver" (castor), "like" (oides) [2]), or the giant beaver, is an extinct genus of enormous, bear-sized beavers that lived in North America during the Pleistocene. Two species are currently recognized, C. dilophidus in the Southeastern United States and C. ohioensis in most of North America.
Agriotherium is an extinct genus of bears whose fossils are found in Miocene through Pleistocene-aged strata of North America, Eurasia, and Africa. This long-lived genus persisted from at least ~11.6–2.5 Mya. [2] Materials from the late-surviving A. africanum in Africa have suggested that A. africanum died out during the early Gelasian. [3]
Arctotherium ("bear beast") is an extinct genus of the Pleistocene short-faced bears endemic to Central and South America. [1] Arctotherium migrated from North America to South America during the Great American Interchange, following the formation of the Isthmus of Panama during the late Pliocene.
Etruscan bear Temporal range: Early Pleistocene Pre๊ ๊ O S D C P T J K Pg N ↓ Fossils Scientific classification Domain: Eukaryota Kingdom: Animalia Phylum: Chordata Class: Mammalia Order: Carnivora Family: Ursidae Genus: Ursus Species: † U. etruscus Binomial name † Ursus etruscus Cuvier, 1823 The Etruscan bear (Ursus etruscus) is an extinct species of bear, endemic to Europe, Asia ...
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