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Giganotosaurus carolinii

Canada DinoFan83 Offline
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( This post was last modified: 06-17-2021, 07:13 PM by DinoFan83 )

Giganotosaurus is a species of allosauroid theropod dinosaur that lived in what is now Argentina during the early Cenomanian age of the Cretaceous period, approximately 98 to 97 million years ago. The holotype specimen was discovered in the Candeleros Formation of Patagonia in 1993, and is almost 70% complete. The animal was named Giganotosaurus carolinii in 1995; the genus name translates as "giant southern lizard" and the specific name honours the discoverer, Rubén D. Carolini. A dentary bone, a tooth and some tracks, discovered before the holotype, were later assigned to this animal. The genus attracted much interest and became part of a scientific debate about the maximum sizes of theropod dinosaurs.
Giganotosaurus was one of the largest known terrestrial carnivores ever. The most complete specimen and also the holotype, MUCPv-Ch1, is thought to be 12.4 meters in length and weigh more than 8320 kg. The referred dentary MUCPv-95 that appears to have been an animal 10% larger has been used to extrapolate a length of 13.6-13.7 meters and a weight of more than 11100 kg, the average size of the 2 specimens being about 13.1 meters in length and more than 9700 kg in weight. Some researchers have found the animal to be larger than Tyrannosaurus
The skull was very deep, with rugose (rough and wrinkled) nasal bones and a ridge-like crest on the lacrimal bone in front of the eye. The front of the lower jaw was flattened, and had a downwards projecting process (or "chin") at the tip. The teeth were compressed sideways and had serrations. The neck was strong and the neural spines tall.

Part of the family of theropods known as the Carcharodontosauridae, Giganotosaurus is one of the most completely known members of the group, which includes other very large theropods, such as the closely related Carcharodontosaurus and sister species Giganotosaurus roseae. Giganotosaurus is thought to have been homeothermic (a type of "warm-bloodedness"), with a metabolic rate between that of a mammal and a reptile, which would have enabled fast growth. It may have been relatively fast moving, with a calculated maximal running speed of 14 metres per second (50.4 km/h). It would have been capable of closing its jaws quickly, capturing and bringing down prey by delivering powerful bites. The "chin" may have helped in resisting stress when a bite was delivered against prey. Giganotosaurus is thought to have been the top predator of its ecosystem, and it may have fed on herbivorous dinosaurs such as sauropods or ornithopods.
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Messages In This Thread
Giganotosaurus carolinii - DinoFan83 - 05-19-2020, 04:03 AM
RE: Giganotosaurus carolinii - DinoFan83 - 05-19-2020, 04:07 AM
RE: Giganotosaurus carolinii - DinoFan83 - 05-27-2020, 12:19 AM
RE: Giganotosaurus carolinii - tigerluver - 05-27-2020, 01:01 AM
RE: Giganotosaurus carolinii - DinoFan83 - 05-27-2020, 01:03 AM
RE: Giganotosaurus carolinii - tigerluver - 05-27-2020, 01:09 AM
RE: Giganotosaurus carolinii - DinoFan83 - 05-27-2020, 01:21 AM
RE: Giganotosaurus carolinii - DinoFan83 - 05-27-2020, 05:26 PM
RE: Giganotosaurus carolinii - DinoFan83 - 06-21-2020, 07:10 PM
RE: Giganotosaurus carolinii - DinoFan83 - 06-22-2020, 05:15 PM
RE: Giganotosaurus carolinii - Mstr293 - 07-27-2020, 03:55 PM
RE: Giganotosaurus carolinii - DinoFan83 - 08-16-2020, 04:57 AM
RE: Giganotosaurus carolinii - Mstr293 - 09-07-2020, 02:04 PM
RE: Giganotosaurus carolinii - DinoFan83 - 09-07-2020, 04:30 PM
RE: Giganotosaurus carolinii - Pckts - 09-07-2020, 05:46 PM
RE: Giganotosaurus carolinii - DinoFan83 - 12-20-2020, 05:51 AM
RE: Giganotosaurus carolinii - DinoFan83 - 03-12-2021, 09:24 PM
RE: Giganotosaurus carolinii - Anchiornis - 08-11-2021, 02:33 PM
RE: Giganotosaurus carolinii - DinoFan83 - 08-12-2021, 05:12 AM
RE: Giganotosaurus carolinii - DinoFan83 - 11-05-2021, 08:11 AM



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