Two specimens of "Adasaurus" have been found, both from the Gobi Desert of southern Mongolia. One is an incomplete skeleton with partial skull, including the vertebral column except the back of the tail, all three bones of the pelvis, the shoulder girdle and the hindlimbs. The second specimen includes the back end of another skeleton, including the hindlimbs. Both specimens are in the collection of the Mongolian Geological Institute in Ulaanbaatar, Mongolia.