Carnosaur
MemberCompsognathusSep-03-2014 8:48 AMCarnotaurus Sastrei
Carnotaurus is a large genus of Abelisaur that lived in South America during the Late Cretaceous period, between about 72 and 69.9 million years ago. The only species is Carnotaurus sastrei. Known from a single well-preserved skeleton, it is one of the best-understood theropods from the Southern Hemisphere. Carnotaurus is a derived member of the Abelisauridae, a group of large theropods that occupied the large predatorial niche in the southern Landmasses of Gondwana during the late Cretaceous. The phylogenetic relations of Carnotaurus are uncertain; it may have been closer to either Majungasaurus or Aucasaurus.Carnotaurus was a lightly built, bipedal predator, measuring 8 to 9 m (26 to 30 ft) in length and weighing at least 1 metric ton (0.98 long ton; 1.1 short tons). As a theropod, Carnotaurus was highly specialized and distinctive. It had thick horns above the eyes, a feature unseen in all other carnivorous dinosaurs, and a very deep skull sitting on a muscular neck. Carnotaurus was further characterized by small, vestigial forelimbs and long and slender hindlimbs. The skeleton is preserved with extensive skin impressions, showing a mosaic of small, non-overlapping scales measuring approximately 5 mm in diameter. The mosaic was interrupted by large bumps that lined the sides of the animal, and there are no hints of feathers.
Ceratosaurus Dentisulcatus
Ceratosaurus was a large genus of ceratosaur from the Late Jurassic Period, found in the Morrison Formation of North America, and the Lourinhã Formation of 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.The type specimen was an individual about 18 feet (5.5 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 ft (6.1 m), an assessment supported by a particularly large Ceratosaurus specimen from the Cleveland-Lloyd Quarry (UMNH 5728), discovered in the mid-1960s, which may have been 22 ft (6.7 m) long assuming similar proportions to the holotype
Nature doesn't deceive us; it is we who deceive ourselves.
Alright, Gonna have to go 55-45 in favor of C. Dentisulcatus.
8.8 meters is an internet invention, a myth. C. Dentisulcatus is based on teeth, and allometrically scaling from teeth is a terrible idea. But, if we absolutely had to, ~7.3 meters is the best estimate. A Ceratosaurus measuring 7.3 meters would weigh in the ballpark of 1200-1500 lbs, big for the species.
Now, even though carnotaurus had the height advantage its teeth are relatively small compared to the jaw. The jaws of this particular species aren't particularly strong either, say compared to the other abelisaurids;
While heavily built in the frontal view, it'sis relatively shallow and narrow from this view. Compared to that of Ceratosaurus(Nasicornis in this example) It looks absolutely tiny. Dentisulcatus,being the largest species, would have a skull that absolutely dwarfs it.
Thus, it would have the more powerfulbite between the two, though both aren't relatively impressive. Ceratosaurus also had the more useable arms - as those of Carnotaurus are vestigial and wouldn't be much use at all.
At parity sizes, i'd favor the Abelisaur but in this match-up, the Ceratosaur takes this.
Nature doesn't deceive us; it is we who deceive ourselves.
Also, what about Ceratosaurus ingens? It's a pretty large species of Ceratosaurus...
A tooth twice as big as another is gonna leave a much bigger and deeper injury and Ceratosaurus had massive teeth.
BTW, just look at the skull of Carnotaurus...
I wouldn't call that a strong skull.
