Bicentenaria Facts
Pronunciation: bye-sen-ten-AR-ee-ah
Name meaning: Relating to two hundred years
| Diet | Carnivore |
| Height | 0.8m |
| Length | 2.5m |
| Weight | 25 kg |
| Environment | Land |
| Era | Cretaceous |
| Period | Late Cretaceous |
| Type | Theropod |
| Location | Argentina |
Bicentenaria was a small carnivorous theropod dinosaur that lived during the early Late Cretaceous period, approximately 100.5 million years ago. This fascinating predator roamed the ancient landscapes of what is now Argentina, specifically in the region covered by the Candeleros Formation in Neuquén Province.
As a member of the coelurosaurian theropods, Bicentenaria was built for agility and speed. Standing roughly 80 centimetres tall at the hip and measuring about 2.5 metres in total length, it was considerably smaller than famous predators like Tyrannosaurus rex. Its lightweight build, weighing approximately 25 kilograms, made it well-suited for chasing down small prey and potentially scavenging opportunities.
Like other theropods, Bicentenaria walked on two powerful legs and possessed sharp claws and teeth designed for capturing and processing meat. Its arms were likely equipped with grasping claws that could help secure struggling prey. The dinosaur's skull would have housed keen senses, particularly sharp eyesight, which would have been essential for hunting in the diverse ecosystems of Cretaceous Argentina.
Bicentenaria represents an important piece of the puzzle in understanding the diversity of South American theropods during the Cretaceous period, providing valuable insights into the evolution and distribution of these remarkable predators.
What made Bicentenaria distinctive?
Bicentenaria was distinguished by its small, lightweight build and typical coelurosaurian features including long legs adapted for swift movement. Its relatively small size compared to other theropods of its time made it well-suited for pursuing smaller prey items.
Behaviour
Bicentenaria likely hunted small animals such as early mammals, lizards, and possibly young dinosaurs, using its speed and agility to chase down prey. As a coelurosaurian, it may have exhibited more complex behaviours than earlier theropods, potentially including some degree of pack coordination during hunting.
Discovery
Bicentenaria was first described by Novas, Ezcurra, Agnolin, Pol and Ortiz in 2012. The original fossils were discovered at Candeleros Formation, Neuquén Province, Argentina.
Bicentenaria FAQ
What did Bicentenaria eat?
Bicentenaria was a carnivore that fed on meat. It likely hunted small animals including early mammals, lizards, insects, and possibly young dinosaurs, using its sharp teeth and claws to catch and kill its prey.
How big was Bicentenaria?
Bicentenaria was quite small for a theropod, standing about 80 centimetres tall at the hip and measuring 2.5 metres in total length. It weighed approximately 25 kilograms, making it similar in size to a large dog.
When did Bicentenaria live?
Bicentenaria lived during the early
Late Cretaceous period, specifically around 100.5 million years ago during the Cenomanian stage, when the climate was much warmer than today.
Where was Bicentenaria found?
Bicentenaria fossils were discovered in Argentina, specifically in the Candeleros Formation of Neuquén Province, a region famous for its diverse dinosaur fossils from the Cretaceous period.
How do you pronounce Bicentenaria?
Bicentenaria is pronounced 'bye-sen-ten-AR-ee-ah', with emphasis on the fourth syllable. The name flows quite naturally when spoken aloud.
What does Bicentenaria mean?
Bicentenaria means 'relating to two hundred years' and was chosen to honour Argentina's bicentennial independence celebration in 2010, making it a patriotic dinosaur name.
How fast could Bicentenaria run?
The exact running speed of Bicentenaria is unknown, but its lightweight build and long legs suggest it was built for speed and agility, likely capable of swift pursuit when hunting small prey.
What type of dinosaur was Bicentenaria?
Bicentenaria was a theropod dinosaur, specifically belonging to the group called coelurosaurians. It was a bipedal carnivore with the typical theropod body plan of powerful legs, grasping arms, and sharp teeth.
Was Bicentenaria related to birds?
Yes, as a coelurosaurian theropod, Bicentenaria belonged to the group of dinosaurs that includes the ancestors of modern birds. It shared many features with early bird species, though it lived much earlier than the first true birds.
How many Bicentenaria fossils have been found?
Bicentenaria is known from limited fossil material, which is typical for many dinosaur species. The exact number of specimens is not widely detailed, but like many dinosaurs, it is likely known from partial remains rather than complete skeletons.
