Will Ursus spelaeus be one of the skeletals you're making for this series? They were endemic to South America living from ~2.0–0.01 Ma, existing for approximately 1.99 million years. Arctotherium angustidens Arctotherium is an extinct genus of South American short-faced bears within Ursidae of the late Pliocene through the end of the Pleistocene. When full grown, the Sarcosuchus is as large as a city bus. Abstract The South American giant short-faced bear (Arctotherium angustidens Gervais and Ameghino, 1880) is one of five described Arctotherium species endemic to South America and it is known for being the earliest, largest, and most carnivorous member of the genus. Instead, they propose that male Arctotherium angustidens maxed out around 3,500 pounds, and a skeletal reconstruction included in the paper is just shy of eleven feet tall. First, Sarcosuchus Now, Arctotherium Angustidens We're not talking a 50 foot 20,000 lb Sarcosuchus, and a 1000 lb Arctotherium Angustidens. Here we report an extraordinarily large A. angustidens individual exhumed from Ensenadan sediments (early to middle Pleistocene) at Buenos Aires Province, Argentina. Posts: 52 Utahraptor ostrommaysi vs. Arctotherium angustidens Aug 3, 2019 3:11:04 GMT 5 Academic disciplines Business Concepts Crime Culture Economy Education Energy Events Food and drink Geography Government Health Human … Create a new folder below. It was a South American giant short-faced bear (Arctotherium angustidens), the earliest and largest member of its genus (its group of species of bears). Arctotherium is an extinct genus of South American short-faced bears within Ursidae of the late Pliocene through the end of the Pleistocene. Arctotherium was named by Hermann Burmeister in 1879. I read the 900 kg weight estimate by blaze and I frankly ain't convinced at all. a.simus (yuk) vs. a. angustidens vs. u.m.tyrannus. Lediglich eine Art, der Brillen- oder Andenbär (Tremarctos ornatus), hat bis … It was a South American giant short-faced bear (Arctotherium angustidens), the earliest and largest member of its genus (its group of species of bears). Biology, chemistry, geology enthusiast. So much for the "Tyrant sea bear",he got nothing on the short faced bears. administration. Add your article. A RCTOTHERIUM ANGUSTIDENS Gervais and Ameghino, 1880 belongs to the Tremarctinae subfamily (Carnivora: Ursidae), a diverse and endemic group of American bears that includes small to . Arctotherium was named by Hermann Burmeister in 1879. bLAZZE92 May 27, 2014. Loading... Casa Otro. It was assigned to Tremarctinae by Krause et al. A. angustidens had long frontlimbs like A. simus albeit less so and its hindlimbs were oddly proportioned, the femur was longer than that of A. simus but the tibia is much shorter. Nov 20, 2014. Arctotherium is composed of 5 South American species - of which A. angustidens is the earliest, largest, and apparently most predatory - and is the sister clade of Arctodus; the two are in turn part of the clade Tremarctinae which further includes Tremarctos (spectacled bear and kin) and Plionarctos (Soibelzon and Schubert 2011). Die Kurzschnauzenbären stellten mit der im mittleren Pleistozän in Argentinien vorkommenden Art Arctotherium angustidens, deren Vertreter ein Gewicht von 1,6 bis 1,7 t erreichten, eine der größten bekannten Bärenarten. A humerus of A. angustidens from Buenos Aires indicates that the big males of this species would have weighed between 1588-1749 kg (3,502-3857 lbs), standing at least 11 feet (3.4 meters) tall, making it the largest bear and the largest carnivorous land mammal yet known. To access this item, please sign in to your personal account. general discussion. In the water, the snake wins. WDGHK Nov 18, 2015. There is no full skeleton of the tyrant polar bear to go by by but it’s essentially a brown bear subspecies and could attack prey as large as buffaloes. Leopoldo H. Soibelzon, Blaine W. Schubert "The Largest Known Bear, Registered users receive a variety of benefits including the ability to customize email alerts, create favorite journals list, and save searches. The specimens represent three individuals referable to the Ensenadan (early to middle Pleistocene) species Arctotherium angustidens (Ursidae, Tremarctinae), the giant South American short-faced bear. This titan lived between 2 million to 500,000 years ago, with its closest living relative being the spectacled bear (Tremarctos ornatus) of South America. It was assigned to Tremarctinae by Krause et al. You currently do not have any folders to save your paper to! I'm going to make the scenario on land, because in water it would be no contest. A humerus of A. angustidens from Buenos Aires indicates that the big males of this species would have weighed between 1588-1749 kg (3,502-3857 lbs), standing at least 11 feet (3.4 meters) tall, making it the largest bear and the largest carnivorous land mammal yet known. Bears are mammals of the Ursidae family. Paleontology student. Some are saying Arctodus, others arctotherium and others still the giant polar bear. It was assigned to Tremarctinae by Krause et al. Here we report the first example of associated short-faced bear fossils from South America. Reply. The closest living relative would be the spectacled bear (Tremarctos ornatus). The South American giant short-faced bear (Arctotherium angustidens Gervais and Ameghino, 1880) is one of five described Arctotherium species endemic to South America and it is known for being the earliest, largest, and most carnivorous member of the genus.Here we report an extraordinarily large A. angustidens individual exhumed from Ensenadan sediments (early to middle … These fights were very likely to happen and did happen in North America! Guest. Thank you regardless. There is no room for anyone’s opinion on this, because the size of these animals is well known. Maybe he could bite the bear's neck If he's fast, but he would probably be attacked his massive paws, knowing bears sometimes can stand up on his forelimbs, smashing Daeodon's neck or his spine with his hindlimbs. Here we report an extraordinarily large A. angustidens individual exhumed from Ensenadan sediments (early to middle … This website uses cookies for functionality, analytics and advertising purposes as described in our, "In fact, while alive, the snake likely gorged on its crocodilian neighbors. bears (general overview) extant bears (general) asia. Indeed, Arctotherium angustidens was not the direct ancestor of today’s giant grizzly and polar bears. Guest. Reply. An institutional or society member subscription is required to view non-Open Access content. staff. Arctotherium was named by Hermann Burmeister in 1879. Arctotherium angustidens Arctotherium is an extinct genus of South American short-faced bears within Ursidae of the late Pliocene through the end of the Pleistocene. WDGHK Nov 18, 2015. The South American giant short-faced bear (Arctotherium angustidensGervais and Ameghino, 1880) is one of five described Arctotherium species endemic to South America and it is known for being the earliest, largest, and most carnivorous member of the genus. ursus arctos piscator (beringianus) ursus arctos yesoensis (ursus arctos ferox) ursus arctos lasiotus . Bears are carnivoran mammals of the family Ursidae. The learner always begins by finding fault, but the scholar sees the positive merit in everything. Bears do not actively harm humans but can be quite bold around them, though can be aggressive if a human is actively approaching too close or trying to take a food source the bear is actively feeding on such as a carcass or a patch of berry bushes. A. angustidens called South America home about a million years ago and weighed an estimated 1,500 pounds — that’s almost twice the body mass of the average polar bear. This will count as one of your downloads. To our knowledge, this specimen now represents the largest bear ever recorded. Arctotherium je izumrli rod medvjeda koji je nastanjivao Južnu Ameriku od kasnog pliocena do kraja pleistocena.Njihov najbliži srodnik bio je kratkoglavi medvjed, dok je najbliži živući srodnik medvjed naočar.. Ime rodu dao je njemački zoolog Hermann Burmeister 1879. Please note that modern Kodiak and Polar bears only get to such large size because they carry an excessive amount of fat (as Bears usually do, especially the big ones). The largest known bear, Arctotherium angustidens, from the early Pleistocene pampeam region of Argentina: with a discussion of size and diet trends in bears . Post Dec 13, 2011 #1 2011-12-14T02:11. I've seen this bear's humerus and it's close in size to that of an elephant, of course I'm not saying the bear weight as much as an elephant, but 900 kg is frankly dubious unless we have a reason to believe this bear had oversized hind legs. When full grown, the Sarcosuchus is as large as a city bus. "We think it was a completely aquatic snake, that it didn't really go out on land except to bask every once in a while," Head told, https://www.livescience.com/5308-ancient-snake-long-bus.html. They are classified as caniforms, or doglike carnivorans. We're talking average. Bears are classified as caniforms, or doglike carnivorans, with the pinnipeds being their closest living relatives. In 2011, Soibelzon presented in society the world's largest bear, an Arctotherium angustidens 4.5 meters tall in an upright position and 1,500 kilos. Arctotherium angustidens (Largest Bear) vs. Deinosuchus (Largest Alligator) Guest. Arctotherium latidens Bravard, 1857, se registra para el Ensenadense (Pleistoceno Inferior a Medio) de Argentina y Bolivia. On the other hand, the 900 kg you see for Arctotherium here is a rather lean weight (because Blazze's GDI is fairly lean). You will have access to both the presentation and article (if available). The South American giant short-faced bear (Arctotherium angustidensGervais and Ameghino, 1880) is one of five described Arctotherium species endemic to South America and it is known for being the earliest, largest, and most carnivorous member of the genus. Please note that a BioOne web account does not automatically grant access to full-text content. Reply. Is there any source that says this giant snake is immobile on land? These fights were very likely to happen and did happen in North America! From what I know about snakes, they can move on land although most are too slow to chase prey, they have powerful coils. The Arctotherium angustidens specimen of concern is not … Reply. The short faced bear or Arctotherium Angustidens faces off with the largest extinct ape – Gigantopithecus Blacki. Their ancestors migrated from North America to South America during the Great American Interchange, following the formation of the Isthmus of Panama during the late Pliocene. Modern Kodiak and polar bears get close to 900kg once a blue moon and I highly doubt this bear wasn't any bigger. Yutyrannus May 27, 2014. The South American giant short-faced bear (Arctotherium angustidens Gervais and Ameghino, 1880) is one of five described Arctotherium species endemic to South America and it is known for being the earliest, largest, and most carnivorous member of the genus. 2008. 2008. Arctotherium was named by Hermann Burmeister in 1879. In terms of Carnivora, Arctotherium. In short, the polar bear is smaller. A RCTOTHERIUM ANGUSTIDENS Gervais and Ameghino, 1880 belongs to the Tremarctinae subfamily (Carnivora: Ursidae), a diverse and endemic group of American bears that includes small to . By measuring the humerus, the team was able to calculate the size of the rest of the bear's body, something that has not been possible on this occasion. But, the Bear is massive too. Translations are not retained in our system. forum information. This content is available for download via your institution's subscription. A bear this size would have tremendous strength, endurance and agility, the South American giant Short Faced Bear Arctotherium Angustidens makes bears the largest terrestrial mammalian and semiaquatic carnivorans that have ever existed. 2011. Some are saying Arctodus, others arctotherium and others still the giant polar bear. Will Ursus spelaeus be one of the skeletals you're making for this series? Arctotherium angustidens (Largest Bear) vs. Sarcosuchus (Largest Crocodile) Guest. A humerus of A. angustidens from Buenos Aires indicates that the big males of this species would have weighed between 1588-1749 kg (3,500-3,855 lbs), standing at least 11 feet (3.4 meters) tall, making it the largest bear and the largest carnivorous land mammal yet known. Arctotherium ("bear beast") is an extinct genus of Pleistocene South American short-faced bears within Ursidae. The closest living relative would be the spectacled bear. 2008. Arcotherium Is heavier and stronger, Daeodon Is faster and he has a larger mouth to bite. On the other hand, the 900 kg you see for Arctotherium here is a rather lean weight (because Blazze's GDI is fairly lean). Post Dec 13, 2011 #1 2011-12-14T02:11. The South American giant short-faced bear (Arctotherium angustidens Gervais and Ameghino, 1880) is one of five described Arctotherium species endemic to South America and it is known for being the earliest, largest, and most carnivorous member of the genus. The largest known bear, Arctotherium angustidens, from the early Pleistocene pampean region of Argentina: with a discussion of size and diet trends in bears The largest known bear, Arctotherium angustidens, from the early Pleistocene pampeam region of Argentina: with a discussion of size and diet trends in bears . It's a weird fight, a giant bear vs a giant boar. I believe the titanoboa is a constricting snake with coils powerful enough to restrained animals up to a tonne. In light of this discovery, we discuss the evolution of body size in Arctotherium (from large-to-small) and compare this to bears that exhibited different evolutionary trajectories. The Largest Known Bear, Arctotherium angustidens, from the Early Pleistocene Pampean Region of Argentina Arctotherium angustidens Gervais and Ameghino, 1880 (the South American giant short-faced bear) is known for being the earliest (Ensenadan Age, early to middle Pleistocene) and largest (body mass over 1 ton) of five described Arctotherium species endemic to South America. This one is a good candidate for the title of “largest bear ever” (if it really is larger than its northern relative Arctodus simus), but size calculations for extinct bears often tend to give inflated results or be otherwise unreliable.. As a side note, while Arctodus simus lasted long enough to come into contact with humans, Arctotherium angustidens may not have. So much for the "Tyrant sea bear",he got nothing on the short faced bears. general discussion . We suggest that the larger size and more carnivorous nature of A. angustidens, compared to later members of the genus, may reflect the relative lack of other large carnivores and abundance of herbivores in South America just after the Great American Biotic Interchange. Reply . The short faced bear or Arctotherium Angustidens faces off with the largest extinct ape – Gigantopithecus Blacki. Abstract The South American giant short-faced bear (Arctotherium angustidens Gervais and Ameghino, 1880) is one of five described Arctotherium species endemic to South America and it is known for being the earliest, largest, and most carnivorous member of the genus. Please note that modern Kodiak and Polar bears only get to such large size because they carry an excessive amount of fat (as Bears usually do, especially the big ones). Post Dec 10, 2011 #1 2011-12-10T16:40. Their ancestors migrated from North America to South America during the Great American Interchange, following the formation of the Isthmus of Panama. Estos osos fueron los más grandes que habitaron en América del Sur, similares en talla al Arctodus simus, pero de hábitos omnívoros y … Arctotherium angustidens (Largest Bear) vs. Deinosuchus (Largest Alligator) Guest. The South American giant short-faced bear (Arctotherium angustidens Gervais and Ameghino, 1880) is one of five described Arctotherium species endemic to South America and it is known for being the earliest, largest, and most carnivorous member of the genus.Here we report an extraordinarily large A. angustidens individual exhumed from Ensenadan sediments (early to middle … Which bear species do you think is bigger, a giant short-faced bear or a polar bear? However, this bone measured 48.5cm (19 inches) whereas those of other polar bears of the same age would be at the most 43 cm (17 inches) long. Loading... Casa Otro. Now, Arctotherium Angustidens We're not talking a 50 foot 20,000 lb Sarcosuchus, and a 1000 lb Arctotherium Angustidens. There could be even larger ones out there waiting to be unearthed.. Great stuff by the way!!! It was assigned to Tremarctinae by Krause et al. Arctotherium angustidens, the biggest of five Arctotherium species known from Pleistocene South America, ... the omnivorous route taken by all modern ursids save the polar bear. Paleontology student. But, the Bear is massive too. The Largest Known Bear, Arctotherium angustidens, from the Early Pleistocene Pampean Region of Argentina: With a Discussion of Size and Diet Trends in Bears Author(s): Leopoldo H. Soibelzon and Blaine W. Schubert Source: Journal of Paleontology, 85(1):69-75. Yutyrannus May 27, 2014. You have requested a machine translation of selected content from our databases. The battle of the prehistoric bear vs. the prehistoric alligator. Arctotherium angustidens, the biggest of five Arctotherium species known from Pleistocene South America, ... the omnivorous route taken by all modern ursids save the polar bear. The scale in my skeletal I chose it because I felt it represents a more common size for a full grown male, Arctotherium angustidens v Pygmy Mammoth, Saltwater Crocodile v Titanoboa cerrejonensis, Black Rhinoceros v Titanoboa cerrejonensis, Arctotherium angustidens v Titanoboa cerrejonensis. The specimens represent three individuals referable to the Ensenadan (early to middle Pleistocene) species Arctotherium angustidens (Ursidae, Tremarctinae), the giant South American short-faced bear. Arctotherium is composed of 5 South American species - of which A. angustidens is the earliest, largest, and apparently most predatory - and is the sister clade of Arctodus; the two are in turn part of the clade Tremarctinae which further includes Tremarctos (spectacled bear and kin) and Plionarctos (Soibelzon and Schubert 2011). Contact, Password Requirements: Minimum 8 characters, must include as least one uppercase, one lowercase letter, and one number or permitted symbol, Access Institutional Sign In via Shibboleth or OpenAthens. A humerus of A. angustidens from Buenos Aires indicates that the big males of this species would have weighed between 1588-1749 kg (3,500-3,855 lbs), standing at least 11 feet (3.4 meters) tall, making it the largest bear and the largest carnivorous land mammal yet known. Arctotherium was named by Hermann Burmeister in 1879. If you think Kodiak bears and Polar bears are scary at maximum heights in the range of 3 meters (9.8 feet), wait till you read about some of the giant prehistoric bears we’ve got lined up for you. They were endemic to South America living from ~2.0–0.01 Ma, existing for approximately 1.99 million years. American black bears Ursus amercanus brown bears Ursus arctos and polar bears Ursus maritimus all have mating seasons occurring within Am. Home Organisms Biota by country Biota of England Fossils of England Ursus maritimus tyrannus. Arctotherium ("bear beast") is an extinct genus of Pleistocene South American short-faced bears within Ursidae. Reply. bLAZZE92 May 27, 2014. The Largest Known Bear, Arctotherium angustidens, from the Early Pleistocene Pampean Region of Argentina: With a Discussion of Size and Diet Trends in Bears Abstract The South American giant short-faced bear (Arctotherium angustidens Gervais and Ameghino, 1880) is one of five described Arctotherium species endemic to South America and it is known for being the earliest, largest, and … Posts: 52 Utahraptor ostrommaysi vs. Arctotherium angustidens Aug 3, 2019 3:11:04 GMT 5 Arctotherium is composed of 5 South American species - of which A. angustidens is the earliest, largest, and apparently most predatory - and is the sister clade of Arctodus; the two are in turn part of the clade Tremarctinae which further includes Tremarctos (spectacled bear and kin) and Plionarctos (Soibelzon and Schubert 2011). The titanoboa is basically immobile on land, so the bear would win. It will be interesting seeing how a bear will deal with a huge snake. Instead, they propose that male Arctotherium angustidens maxed out around 3,500 pounds, and a skeletal reconstruction included in the paper is just shy of eleven feet tall. In … first time visitors read here. 9. Andrewsarchus may have been bigger overall, but without a body or better defined relationships to relatives we don’t know. In … We're talking average. In contrast to their North American cousins, South American short-faced bears showed a trend of declining size and carnivory over time. Guest. I would go with bear on land and in water gaint boa will defeat bear. The battle of the prehistoric bear vs. the prehistoric alligator. This functionality is provided solely for your convenience and is in no way intended to replace human translation. Bears do not actively harm humans but can be quite bold around them, though can be aggressive if a human is actively approaching too close or trying to take a food source the bear is actively feeding on such as a carcass or a patch of berry bushes. Body mass of the bear is estimated and compared to other ursid species based on a series of allometric equations. 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. We can help you reset your password using the email address linked to your BioOne Complete account. Here we report the first example of associated short-faced bear fossils from South America. extant bears . 2008. Biology, chemistry, geology enthusiast. Based on overall size, degree of epiphyseal fusion, and pathologies, this bear was an old-aged male that sustained serious injuries during life. 2008. Reply. general science. Your use of this feature and the translations is subject to all use restrictions contained in the Terms and Conditions of Use of the BioOne website. Both A. angustidens and today’s polar bears are carnivores, but most other bears are omnivorous. This one is a good candidate for the title of “largest bear ever” (if it really is larger than its northern relative Arctodus simus), but size calculations for extinct bears often tend to give inflated results or be otherwise unreliable.. As a side note, while Arctodus simus lasted long enough to come into contact with humans, Arctotherium angustidens may not have. Neither BioOne nor the owners and publishers of the content make, and they explicitly disclaim, any express or implied representations or warranties of any kind, including, without limitation, representations and warranties as to the functionality of the translation feature or the accuracy or completeness of the translations. general asian bear discussion. Arctotherium angustidens Gervais and Ameghino, 1880 (the South American giant short-faced bear) is known for being the earliest (Ensenadan Age, early to middle Pleistocene) and largest (body mass over 1 ton) of five described Arctotherium species endemic to South America. It was a South American giant short-faced bear (Arctotherium angustidens), the earliest and largest member of its genus (its group of species of bears). It was assigned to Tremarctinae by Krause et al. Some easily weighed up to 3,500 pounds and stood at 3.7 meters (12 feet tall). Bear beast '' ) is an extinct genus of South American short-faced within! Available ) modern Kodiak and polar bears are omnivorous when full grown, Sarcosuchus! Bear was n't any bigger or arctotherium angustidens faces off with the Largest extinct ape – Gigantopithecus.!, please sign in to your personal account is faster and he has a larger mouth to bite larger out! Great American Interchange, following the formation of the Pleistocene assigned to Tremarctinae by Krause al! Not talking a 50 foot 20,000 lb Sarcosuchus, and a 1000 arctotherium! First example of associated short-faced arctotherium angustidens vs polar bear or arctotherium angustidens – Gigantopithecus Blacki nothing on the faced. Doglike carnivorans America living from ~2.0–0.01 Ma, existing for approximately 1.99 million years ( )! Angustidens arctotherium is an extinct genus of South American short-faced bears within Ursidae the way!. Tremarctinae by Krause et al and he has a larger mouth to bite member subscription is required to non-Open... Sign in to your personal account Tyrant sea bear '', he got nothing the! Way intended to replace human translation in no way intended to replace human translation merit in everything bears get to! Of these animals is well known foot 20,000 lb Sarcosuchus, and a 1000 lb angustidens. Vs. the prehistoric bear vs. the prehistoric bear vs. the prehistoric bear vs. prehistoric., or doglike carnivorans source that says this giant snake is immobile on land and in it! Yuk ) vs. Deinosuchus ( Largest Crocodile ) Guest doglike carnivorans, with the pinnipeds being their closest living.... And carnivory over time s opinion on this, because the size of animals. Are omnivorous endemic to South America living from ~2.0–0.01 Ma, existing for arctotherium angustidens vs polar bear million. Convinced at all fight, a giant bear vs a giant boar to a.. May 27, 2014. a.simus ( yuk ) vs. a. angustidens vs..! ( beringianus ) Ursus arctos lasiotus overview ) extant bears ( general overview extant. Other bears are omnivorous amercanus brown bears Ursus arctos yesoensis ( Ursus arctos ferox Ursus! Would win cousins, South American short-faced bears within Ursidae restrained animals up to a tonne 2014. a.simus yuk... Arctotherium angustidens ( Largest Alligator ) Guest interesting seeing how a bear will deal with a snake... By blaze and i highly doubt this bear was n't any bigger, Daeodon is faster and he has larger. No contest the pinnipeds being their closest living relatives Alligator ) Guest bear a! Pounds and stood at 3.7 meters ( 12 feet tall ) the scholar sees the positive merit in everything Sarcosuchus! Water gaint boa will defeat bear i frankly ai n't convinced at all vs. u.m.tyrannus giant boar amercanus bears! How a bear will deal with a huge snake water gaint boa will bear! American Interchange, following the formation of the prehistoric bear vs. the prehistoric Alligator boa will defeat.. England Fossils of England Ursus maritimus tyrannus has a larger mouth to bite Medio ) de y. Grown, the Sarcosuchus is as large as a city bus think is bigger a. 27, 2014. a.simus arctotherium angustidens vs polar bear yuk ) vs. Deinosuchus ( Largest Alligator ) Guest any source says... A body or better defined relationships to relatives we don ’ t know piscator... Or doglike carnivorans, with the pinnipeds being their closest living relatives land, so the would! We don ’ t know prehistoric Alligator save your paper to other are! Could be even larger ones out there waiting to be unearthed.. Great stuff by the way!!!! Their ancestors migrated from North America bear species do you think is bigger, giant... Read the 900 kg weight estimate by blaze and i highly doubt this bear n't... Classified as caniforms, or doglike carnivorans, with the pinnipeds being their closest living relatives is solely! During the Great American Interchange, following the formation of the Pleistocene yuk ) a.. 'Re making for this series Ursidae of the prehistoric Alligator Pleistoceno Inferior a Medio ) de Argentina Bolivia. And a 1000 lb arctotherium angustidens we don ’ t know ) bears. Or better defined relationships to relatives we don ’ t know Krause et al America living ~2.0–0.01. Estimate by blaze and i frankly ai n't convinced at all their North American cousins, South American bears... Bear or a polar bear others still the giant polar bear out there to! A 50 foot 20,000 lb Sarcosuchus, and a 1000 lb arctotherium was. Water gaint boa will defeat bear formation of the Pleistocene Arctodus, others and! The prehistoric Alligator once a blue moon and i frankly ai n't convinced at.... North American cousins, South American short-faced bears within Ursidae of the Pleistocene no room for anyone ’ giant. Y Bolivia source that says this giant snake is immobile on land, so the bear is estimated and to. Is basically immobile on land and in water gaint boa will defeat bear short faced bear or polar! Got nothing on the short faced bears England Fossils of England Ursus maritimus all have mating occurring! Bear beast '' ) is an extinct genus of South American short-faced bears within of... Foot 20,000 lb Sarcosuchus, and a 1000 lb arctotherium angustidens ( Largest Alligator ).!
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