Species: kuczynskii KIELAN-JAWOROWSKA, 1969
Etymology: In honor of Mr. Maciej Kuczynski, who found the type material.

Holotype: ZPal MgMI/33

Locality: Ruins, Bayan Zag (= Bayn Dzak, Shabarakh Usu GILMORE, 1943), Ömnögov (South Gobi), Mongolia.

Horizon: Djadochta Formation.

Biostratigraphy:

Age: Middle Campanian Stage, Senonian Subepoch, Gulf Epoch, Late Cretaceous.

Material: Skull lacking zygomatic arches of a juvenile.

Referred material:

ZPal MgMI/38: Fragmentary skull and fragmentary lower jaw.

ZPal MgMI/39: Fragmentary skull.
cf. kuczynskii NOVACEK, DASHZEVG & McKENNA, 1994/DASHZEVEG, NOVACEK, NORELL, CLARK, CHIAPPE, DAVIDSON, McKENNA, DINGUS, WISHER & ALTANGEREL, 1995

Locality: Ukhaa Tolgod, near the salt extraction settlement of Daus, northeastern Nemegt Basin, Gurvan Tes Somon, Ömnögov (South Gobi), Mongolia.

Horizon: Djadokhta Formation or the Barun Goyot Formation.

Biostratigraphy:

Age: Middle-Late Campanian Stage, Senonian Subepoch, Gulf Epoch, Late Cretaceous.

Material:

Number: Not given: