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| Saltwater Crocodile v Ceratosaurus nasicornis | |
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| Tweet Topic Started: Feb 25 2013, 05:19 PM (4,353 Views) | |
| Taipan | Feb 25 2013, 05:19 PM Post #1 |
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Saltwater Crocodile - Crocodylus porosus Largest living crocodilian species with a confirmed measurement, and in fact the world's largest living reptile in terms of mass. Adult males can reach sizes of up to 6 or 7 metres (20 to 23 feet), the largest confirmed individual being 20.7 feet (6.3 metres). There is always a lot of interest over the largest ever recorded saltie. In general, males over 5 m (17 feet) in length are extremely rare. Females are smaller, the normal maximum adult size being 2.5 m to 3 m (8 to 10 feet) being the normal maximum adult size. Maximum weight varies, but has been known to exceed 1,000 kg in 18 to 19 foot adults. 5 metre adults are closer to 400 to 500 kg. This is a large-headed species with a heavy set of jaws. A pair of ridges run from the eye orbits along the centre of the snout, becoming more distinct with age. The upper surface of the top jaw becomes very rugose in large adult males. ![]() Ceratosaurus nasicornis Ceratosaurus meaning "horned lizard", in reference to the horn on its nose (Greek κερας/κερατος, keras/keratos meaning "horn" and σαυρος/sauros meaning "lizard"), was a large predatory theropod dinosaur from the Late Jurassic Period (Kimmeridgian to Tithonian), found in the Morrison Formation of North America, in Tanzania and Portugal. It was characterized by large jaws with blade-like teeth, a large, blade-like horn on the snout and a pair of hornlets over the eyes. The forelimbs were powerfully built but very short. The bones of the sacrum were fused (synsacrum) and the pelvic bones were fused together and to this structure (Sereno 1997) (i.e. similar to modern birds). A row of small osteoderms was present down the middle of the back. Ceratosaurus was a fairly typical theropod, with a large head, short forelimbs, robust hind legs, and a long tail. Uniquely among theropods, Ceratosaurus possessed dermal armor, in the form of small osteoderms running down the middle of its back. The tail of Ceratosaurus comprised about half of the body's total length. It was thin and flexible, with high vertebral spines. The type specimen was an individual about 17.5 feet (5.3 m) long; it is not clear whether this animal was fully grown. David B. Norman (1985) estimated that the maximum length of Ceratosaurus was 20 feet (6 m). A particularly large Ceratosaurus specimen from the Cleveland-Lloyd Quarry (UUVP 81), discovered in the mid-1960s, may have been up to 28.8 feet (8.8 m) long. Marsh (1884) suggested that Ceratosaurus weighed about half as much as Allosaurus. In Predatory Dinosaurs of the World, published in 1988, Gregory S. Paul estimated that the C. nasicornis holotype skeleton came from an animal weighing about 524 kilograms (1,160 lb). ![]() ______________________________________________________________________________
Edited by Taipan, Apr 4 2018, 10:22 PM.
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| Taipan | Apr 4 2018, 10:19 PM Post #16 |
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^ Well rightly or wrongly this matchup is quite close. I always thought the bipedal theropod had a good advantage over the "ground hugging" crocodilians. |
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| Wombatman | Apr 4 2018, 11:26 PM Post #17 |
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Ceratosaurus dentisulcatus is also way bigger than the average saltwater crocodile, and its jaws, although weaker than those of the croc, carried lots of dagger-like teeth that would go through the armored scales and the flesh easily. |
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