Named By: Rinchen Barsbold - 1983.
Classification: Chordata, Reptilia, Dinosauria, Theropoda, Dromaeosauridae, Dromaeosaurinae.
Species: A. mongoliensis (type).
Size: About 1.8 meters long.
Known locations: Mongolia, Bayankhongor Province - Nemegt Formation.
Time period: Late (late Campanian to early Maastrichtian) of the Cretaceous.
Fossil representation: Initially based upon the description of a partial skull and incomplete post cranial skeleton of single dinosaur, a second partial skeleton has now been described for the genus.
just under two meters long, Adasaurus is roughly
on the smaller
average end of the size range for dromaeosaurs.
Close study of
Adasaurus remains have identified it as a
dromaeosaurid, meaning that it is more closely related to
dromaeosaurs such as Yurgovuchia,
Like with its relatives, Adasaurus
was a hunter of
other animals, quite probably other dinosaurs. The primary killing
weapons for Adasaurus would have been the two
enlarged sickle claws on
its feet, which may have been used to jab at prey. Although not
confirmed, because Adasaurus is a dromaeosaurid
dinosaur, it is
expected to have had at least some feathers present on the body in
Adasaurus was named after an evil spirit called Ada which appears in Mongolian mythology. The species name mongoliensis simply means ‘From Mongolia’. Adasaurus is one of many dinosaurs recovered from the world famous Nemegt Formation, which also holds other notable dinosaur genera such as Alioramus, Gallimimus, Avimimus, Therizinosaurus and Tarbosaurus amongst an ever increasing number of discovered dinosaurs.
Carnivorous dinosaurs from the Cretaceous of Mongolia, Rinchen Barsbold - 1983.