The first finger (or "thumb") would have been the largest. The contemporary spinosaurid genus Sigilmassasaurus has also been synonymized by some authors with S. aegyptiacus, though other researchers propose it to be a distinct taxon. [20] The specimen was located in Algeria, and "is of Albian age. Spinosaurus was a large carnivorous Cretaceous period (112-93.5 Mya) dinosaur characterized by its large thin back spikes. Based on some research data, Spinosaurus was believed to be even bigger. [2][3][4] New estimates published in 2014 and 2018, based on a more complete specimen, supported the earlier research, finding that Spinosaurus could reach lengths of 15 to 16 meters (49 to 52 ft). Diet: Fish and other aquatic animals. [57] The hypothesis that Spinosaurus had a typical quadrupedal gait since fell out of favor, however it was still believed that spinosaurids may have crouched in a quadrupedal posture, due to biological and physiological constraints. We are likely underestimating the weight of many dinosaurs, by the way." The approximate weight of a Mesco SOLAR/DX 140-V excavator. When entering Battle Mode, the boomerang that would form one of the Spino Charge Megazord's weapons pops up from within the Spino Zord's sail. Join our monthly newsletter! This was based on looking at the specimens assigned to Oxalaia, and the supposed autapomorphies of this taxon to be insignificant and fall within the hypodigm of Spinosaurus aegyptiacus. Examinations by Marcos Sales and Cesar Schultz and colleagues (2017) indicate that the South American spinosaurids Angaturama, Irritator, and Oxalaia were intermediate between Baronychinae and Spinosaurinae based on their craniodental features and cladistic analysis. [6] Like UCPC-2, it is thought to have come from the early Cenomanian. It had unusually tall neural spines on it's back, up to 6 feet (2 meters) tall. New estimates published in 2014 and 2018, based on a more complete specimen, supported the earlier research, finding that Spinosaurus could reach lengths of 15 to 16 meters (49 to 52 ft). In: Piveteau, J., editor. Semiaquatic Adaptations . [42] The neural spines were slightly longer front to back at the base than higher up, and were unlike the thin rods seen in the pelycosaur finbacks Edaphosaurus and Dimetrodon, contrasting also with the thicker spines in the iguanodontian Ouranosaurus. The Spinosaurus is thought to have measured around 46 feet long and weighed about 7.4 short tons. Scientists say that Spinosaurus spent most of its time in the water and it was a semi-aquatic dinosaur. In the film, Spinosaurus was portrayed as larger and more powerful than Tyrannosaurus: in a scene depicting a battle between the two resurrected predators, Spinosaurus emerges victorious by snapping the Tyrannosaurus' neck. [47][56], The possibility of a quadrupedal Spinosaurus was revived by a 2014 paper by Ibrahim and colleagues that described new material of the animal. Estimates published in 2005, 2007, and 2008 suggested that it was between 12.6 to 18 meters (41 to 59 ft) in length and 7 to 20.9 metric tons (7.7 to 23.0 short tons) in weight. Like other Spinosaurids, it's large, powerful arms had three razor sharp claw… It is unclear whether one or two species are represented in the fossils reported in the scientific literature. If you ever read this, Ibrahim himself made comment on Spinosaurus weight in a Reddit AMA. 2583 average 12lb housecats. But with the recent discovery of a more complete skeleton this estimate has increase to more that 20 tons for an adult Spinosaurus. The elongated neural spines and chevrons, which run to the end of the tail on both dorsal and ventral sides, indicate that Spinosaurus was able to swim in a similar manner to modern crocodilians. It is unclear whether Spinosaurus was primarily a terrestrial predator or a piscivore, as indicated by its elongated jaws, conical teeth and raised nostrils. FMM UV … The spinosaurus had a long skull with a narrow snout, somewhat like a crocodile. Both Friedrich von Huene in 1926 and Donald F. Glut in 1982 listed it as among the most massive theropods in their surveys, at 15 meters (49 ft) in length and upwards of 6 tons in weight. Unlike in other theropods, the hallux (or fourth toe) of Spinosaurus touched the ground, and the phalanges of the toe bones were unusually long and well-built.
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