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| South American Giant Short-faced Bear v Euoplocephalus tutus | |
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| Tweet Topic Started: Jan 24 2014, 09:20 PM (3,501 Views) | |
| Taipan | Jan 24 2014, 09:20 PM Post #1 |
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South American Giant Short-faced Bear - 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. 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 (A. pristinus and A. simus). The closest living relative would be the Spectacled bear (Tremarctos ornatus). Arctotherium was named by Hermann Burmeister in 1879. It was assigned to Tremarctinae by Krause et al. 2008.[2] A specimen of A. angustidens from Buenos Aires shows an individual estimated, using the humerus, to weight between 983–2,042 kg (2,170–4,500 lb), though the authors consider the upper limit as improbable and say that 1,588 kg (3,500 lb) is more likely, however, using the radious, the mass estimate shrinks to a maximum of 1,108 kg (2,440 lb). Independently of the method it is possibly the largest bear ever found and contender for the largest carnivorous land mammal known to science. ![]() Euoplocephalus tutus Euoplocephalus (play /juːˌɒplɵˈsɛfələs/ ew-op-lo-sef-ə-ləs; Greek: eu-/ευ- meaning 'well', hoplo-/οπλο- meaning 'armed' and kephale/κεφαλη meaning 'head', "well-armored head") was one of the largest genera of ankylosaurian dinosaurs, at about the size of a small elephant. It is also the ankylosaurian with the best fossil record, so its extensive spiked armor, low-slung body and great club-like tail are well documented. Among the ankylosaurids, Euoplocephalus was exceeded in size only by Tarchia and Ankylosaurus. Euoplocephalus was 6 metres (20 ft) long and weighed about 2 tonnes (2.2 short tons). It was also 2.4 metres (7.9 ft) wide. The head and body of Euoplocephalus were covered with bony armor, except for parts of the limbs and possibly the distal tail. Much of this armor was made up of small ossicles. Larger flat scutes, conical plates, and disc-shaped plates were arranged in transverse bands among this pavement of ossicles. Two bands protected the dorsal and lateral surfaces of the neck, four were present across the front part of the torso, three protected the pelvis, and four were present on the anterior half of the tail. The banded arrangement is thought to have permitted some freedom of movement. ![]()
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| Vivyx | Mar 7 2014, 02:14 AM Post #16 |
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Felines, sharks, birds, arthropods
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It's good to have you back Superpredator And I agree with you |
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| Hatzegopteryx | Mar 7 2014, 03:39 AM Post #17 |
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Unicellular Organism
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I would say the ankylosaurid wins. It has amazing weaponry, and it's a pretty quick turner. |
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| Palaeogirl | Mar 7 2014, 09:24 AM Post #18 |
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Omnivore
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The dinosaur wins with ease. The bear would struggle to do damage and by the time it did it'd likely have quite a few smashed bones. |
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| Superpredator | Mar 8 2014, 07:20 AM Post #19 |
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Apex Predator
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Thanks, nice to be back as well.
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2:17 AM Jul 14