The material was discovered in Romania by Franz Nopcsa, in the late Maastrichtian Sânpetru Formation (Rognacian faunal stage, deposited c. 68 - 66 million years ago) of the Haţeg Basin in Transylvania.
The discovery of the material took place in Romania during the late Maastrichtian period within the Sânpetru Formation of the Rognacian faunal stage, which dates back to approximately 68-66 million years ago, in the Haţeg Basin of Transylvania.