Adasaurus Facts
Pronunciation: AH-da-SORE-us
Name meaning: Ada's Lizard (named after the evil spirit Ada from Mongolian mythology)
| Diet | Carnivore |
| Height | 0.6m |
| Length | 2m |
| Weight | 15 kg |
| Environment | Land |
| Era | Cretaceous |
| Period | Late Cretaceous |
| Type | Theropod |
| Location | Mongolia |
Adasaurus was a small theropod dinosaur that lived in what is now Mongolia during the Late Cretaceous period, approximately 72.2 million years ago. This agile predator belonged to the raptor family, making it a relative of the more famous Velociraptor and Deinonychus. Like other members of its group, Adasaurus was built for speed and precision hunting in the ancient landscapes of Asia.
Standing about 60 centimetres tall at the hip and measuring roughly 2 metres in length, Adasaurus was a compact but deadly hunter. It possessed the characteristic sickle-shaped killing claw on each foot that made raptors such formidable predators, though this claw appears to have been smaller and less curved than those of its relatives. Its lightweight build, estimated at around 15 kilograms, would have made it an incredibly swift and manoeuvrable hunter.
As a carnivore, Adasaurus likely preyed upon smaller dinosaurs, early mammals, and other vertebrates that shared its environment. Its sharp teeth and powerful claws would have made quick work of its prey, whilst its keen eyesight and intelligent brain helped it track and ambush victims. The dinosaur's long tail served as a counterbalance whilst running and making sharp turns during pursuit.
Our knowledge of Adasaurus comes from two partial specimens discovered in Mongolia's famous Nemegt Formation, first described by Mongolian palaeontologist Rinchen Barsbold in 1983. Whilst the fossil material is incomplete, it provides valuable insight into the diversity of raptor dinosaurs that flourished in Late Cretaceous Asia.
What made Adasaurus distinctive?
Adasaurus had a smaller and less curved sickle claw on each foot compared to other raptors, which may indicate different hunting strategies. It possessed a relatively lightweight build even for a small theropod, suggesting exceptional speed and agility.
Behaviour
Adasaurus likely hunted alone or in small groups, using its speed and agility to chase down prey across the ancient Mongolian plains. Its smaller sickle claws suggest it may have relied more on speed and bite force rather than the slashing attacks typical of larger raptors.
Adasaurus FAQ
What did Adasaurus eat?
Adasaurus was a carnivore that hunted smaller dinosaurs, early mammals, lizards, and other vertebrates. It used its sharp teeth to deliver killing bites and its claws to grasp and slash at prey, though its smaller sickle claws suggest it may have relied more on speed and bite force than other raptors.
How big was Adasaurus?
Adasaurus was a small dinosaur, standing about 60 centimetres tall at the hip and measuring roughly 2 metres in total length. It weighed approximately 15 kilograms, making it similar in size to a large dog but much more lightly built for speed and agility.
When did Adasaurus live?
Adasaurus lived during the
Late Cretaceous period, approximately 72.2 million years ago. This was towards the end of the age of dinosaurs, roughly 6 million years before the mass extinction event that ended the Cretaceous period.
Where was Adasaurus found?
Adasaurus fossils were discovered in Mongolia, specifically in the famous Nemegt Formation. This fossil-rich area in the Gobi Desert has yielded many important dinosaur discoveries and provides a window into
Late Cretaceous Asian ecosystems.
How do you pronounce Adasaurus?
Adasaurus is pronounced 'AH-da-SORE-us', with the emphasis on the first and third syllables. The name combines 'Ada' from Mongolian mythology with the Greek word 'saurus' meaning lizard.
What does Adasaurus mean?
Adasaurus means 'Ada's Lizard', named after Ada, an evil spirit from traditional Mongolian mythology. This name was chosen to reflect the dinosaur's discovery in Mongolia and perhaps its nature as a fierce predator.
How fast could Adasaurus run?
The exact running speed of Adasaurus is unknown, but its lightweight build and long legs suggest it was built for speed. Like other small raptors, it may have been capable of running at considerable speeds to chase down prey and escape larger predators.
What type of dinosaur was Adasaurus?
Adasaurus was a theropod dinosaur, specifically a member of the Dromaeosauridae family, also known as raptors. This group includes famous dinosaurs like
Velociraptor and
Deinonychus, all characterised by their sickle-shaped claws and predatory lifestyle.
Was Adasaurus related to birds?
Yes, as a theropod dinosaur, Adasaurus was part of the lineage that gave rise to modern birds. Raptors like Adasaurus were particularly close to the bird lineage and likely possessed feathers, though no feather impressions have been found with Adasaurus fossils.
How many Adasaurus fossils have been found?
Only two partial specimens of Adasaurus have been discovered, both from the Nemegt Formation in Mongolia. These incomplete remains were first described by palaeontologist Rinchen Barsbold in 1983, making Adasaurus one of the less well-known raptor dinosaurs.
