Abelisaurus is a genus of predatory abelisaurid theropod dinosaur during the Late Cretaceous Period of what is now South America.
- Kingdom: Animalia
- Phylum: Chordata
- Clade: Dinosauria
- Order: Saurischia
- Suborder: Theropoda
- Family: Abelisauridae
- Clade: Furileusauria
- Tribe: Carnotaurini
- Genus: AbelisaurusBonaparte & Novas, 1985
- Type species: Abelisaurus comahuensis
- Size: 25 to 30 feet in length
Abelisaurus dinosaur Size height weight life-pan
The large theropod Abelisaurus comahuensis was similar to Albertosaurus from Alberta, Canada, especially in it,’s size and lifestyle. It was a bipedal carnivore that probably reached 7 to 9 meters (25 to 30 feet) in length, although it is known from only one partial skull. But it’s skull led two Argentinian paleontologists to put it in it’s own family now known as the Abelisaurida. It lived in Argentina during the Late Cretaceous, 70 to 66 million years ago.
- Weighed as much as Hippopotamus
- Was 3 car lengths long
- Was a carnivore
- /Could run about 30 MPH
- Lived in South America
Abelisaurus Dinosaur was a bipedal carnivore, a primitive theropod dinosaurs, standing roughly 6.6 feet (2 metres) tall at the hips, 21 to 26 feet long and weighing 1.4 tons. Large fenestrations (window-like openings) in the Abelisaurus’s skull meant that its skull was lighter than most dinosaurs.
Abelisaurus Dinosaur may have been connected to carnotaurus dinosaurs, which also lived in Argentina over 70 million years ago, and perhaps to indosuchus.
Classification of Abelisaurus dinosaur
Bonaparte and Novas placed Abelisaurus in the newly created family Abelisauridae in 1985. They thought it was a member of the Carnosauria. Abelisaurus was the first abelisaurid named.
Many other abelisaurids have since been discovered, including much more complete specimens of Aucasaurus, Carnotaurus and Majungasaurus. They showed that abelisaurids were not carnosaurs in the modern sense, but belonged to the Neoceratosauria instead. Some scientists place Abelisaurus as a basal abelisaurid, outside the subfamily Carnotaurinae. Others are less certain of its position.
About Abelisaurus dinosaur
Abelisaurus is named in honor of the director of the Museo de Cipolleti, Professor Roberto Abel, the man responsible for unearthing the actual fossil skull from diggings in Patagonia, a rugged and remote region of Argentina.
The process of finding and naming a new dinosaur requires many hands; Prof. Abel discovered the skull, while Bonaparte and Novas “diagnosed,” or categorized and classified, Abelisaurus through exhaustive examination of the skull. The name they proposed pays tribute to Abel while acknowledging the geographic rarity of a South American carnivorous dinosaur: comahuensis refers to the Comahue region, where the skull was discovered. South American carnivorous dinosaurs are not common, though the prey dinosaurs they dined on, such as sauropods, are found in abundance.
This carnivorous, ground-dwelling dinosaur, a theropod, probably roamed South America and Africa some 74 million to 70 million years ago in the Early Campanian period of the Late Cretaceous. It probably moved on its rear legs, using its smaller front legs much as Tyrannosaurs did.
Between seven and nine meters in length and around two meters tall, tipping the scales at just over 1,360 kilograms (around a ton and a half), Abelisaurus had a head nearly a meter long—the extant skull is 85 centimeters. It had a narrow head with many short, knife-like teeth. Paleontologists base some of this physiology on other abelisaurids, such as Aucasaurus and Majungasaurus.
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