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Carnotaurus is the only known carnivorous bipedal animal with a pair of horns on the frontal bone. [45] The use of these horns is not entirely clear. Several interpretations have revolved around use in fighting conspecifics or in killing prey, though a use in display for courtship or recognition of members of the same species is possible as well.
Skull diagram of the basal sauropodomorph ... They are typically found in carnivorous dinosaurs, ... The rostral bone is a novel bone found in ceratopsians.
This is an accepted version of this page This is the latest accepted revision, reviewed on 8 January 2025. Extinct clade of dinosaurs Megaraptorans Temporal range: Early - Late Cretaceous 130–66 Ma Pre๊ ๊ O S D C P T J K Pg N Diagram showing the skull and skeleton of Murusraptor Scientific classification Domain: Eukaryota Kingdom: Animalia Phylum: Chordata Clade: Dinosauria Clade ...
A. jimmadseni skull with diagram highlighting individual bones The skull and teeth of Allosaurus were modestly proportioned for a theropod of its size. Paleontologist Gregory S. Paul gives a length of 845 mm (33.3 in) for a skull belonging to an individual he estimates at 7.9 m (26 ft) long. [ 30 ]
Dorsal fin diagram with landmarks labeled. Fins allow the sharks to be able to guide and lift themselves. Most sharks have eight fins: a pair of pectoral fins, a pair of pelvic fins, two dorsal fins, an anal fin, and a caudal fin. Pectoral fins are stiff, which enables downward movement, lift, and guidance.
Fibrolamellar bone is fairly common in young crocodilians and sometimes found in adults. [68] [69] Haversian bone has been found in turtles, crocodilians and tortoises, [70] but is often absent in small birds, bats, shrews and rodents. [69] Nevertheless, de Ricqlès persevered with studies of the bone structure of dinosaurs and archosaurs.
Found in articulation, with the bones still connected to each other, it was nearly complete, including the skull. Significant missing parts include an unknown number of vertebrae, all but the last ribs of the trunk, the humeri (upper arm bones), the distal finger bones of both hands, most of the right arm, most of the left leg, and most of the ...
On the other hand, carnivorous marsupials have teeth of a carnassial form. Both the living Tasmanian devil (Sarcophilus harrisii) and the recently extinct Tasmanian wolf (Thylacinus cynocephalus) possessed modified molars to allow for shearing, although the Tasmanian wolf, the larger of the two, had dentition more similar to the dog. [5]