HILTON, 2003
Locality: Placer County, California.
Horizon: Chico Formation.
Biostratigraphy:
Age: Campanian Stage, Senonian subepoch, Upper Gulf epoch, Late Cretaceous.
Material:
SC VR59: Skull fragments.
_____________________________________________________________________________________
STORRS, ARKHANGEL’SKII & EFIMOV, 2000/YARKOV, 1993
Localities: Near Volgograd, European Russia.
Horizon:
Biostratigraphy:
Age: Campanian Stage, Senonian subepoch, Upper Gulf epoch, Late Cretaceous.
Material:
Number: Not given: Vertebrae and teeth.
Locality: Saratov and Penza, European Russia.
Horizon:
Biostratigraphy:Age: Campanian Stage, Senonian subepoch, Upper Gulf epoch, Late Cretaceous.
Material:
Number: Not given: