Oospecies: philoceratops OSBORN, 1924

Holotype: AMNH FARB 6517

Locality: 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: Fragmentary skull, jaws, cervical, dorsal vertebrae, and one forelimb.
Note: Furcula was found, first interpreted as an interclavicle by OSBORN, 1924.

Note: Skull was found next to a nest of eggs.

Note: Lizard skeleton was found in the stomach region (NORELL, DINGUS & GAFFNEY, 2000), but it was not identified.

Note: A tiny hindlimb was found with the adult indicating at least some of the eggs associated with the holotype hatched and the perinates had not left the nest.

Referred material:

NORELL, CLARK, DASHZEVEG, BARSBOLD, CHIAPPE, DAVIDSON, MCKENNA, PERLE & NOVACEK, 1994

Locality: Ukhaa Tolgod, near the salt extraction settlement of Daus, northeastern Nemegt Basin, 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:

IGM 100/971: Egg with a fragmentary skull and fragmentary skeleton.

Numbers: Not given: Several adult and juvenile skeletons and eggs.

Note: 3 other egg types are known from this area.

 

NORELL, CLARK, CHIAPPE, & DASHZEVEG, 1995

Locality: Ukhaa Tolgod, near the salt extraction settlement of Daus, northeastern Nemegt Basin, 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:

IGM 100/979: Fragmentary skeleton with eggs.
Note: Specimen is preserved protecting the eggs.

 

DONG & CURRIE, 1995, 1996

Locality: Bayan Mandahu, Urad Houqi, Inner Mongolia (Nei Mongolia), China.

Horizon: Djadochta Formation.

Biostratigraphy:

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

Material:

IVPP V9608: A partial skeleton with vertebrae, pectoral girdle, right front limb, and right hind limb. A partial nest of half a dozen eggs found beneath the skeleton.

 

DONG & CURRIE, 1995, 1996

Locality: Bayan Mandahu, Urad Houqi, Inner Mongolia (Nei Mongolia), China.

Horizon: Djadochta Formation.

Biostratigraphy:

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

Material:

IVPP V9608: A partial skeleton with vertebrae, pectoral girdle, right front limb, and right hind limb. A partial nest of half a dozen eggs found beneath the skeleton.