Species: bolivianum RAGE, MARSHALL & GAYET, 1993
Etymology: In reference to Bolivia, where the specimen was found.
Holotype: Museum de Historia natural de Cochabamba, Bolivia (MHNC 6636)
Locality: Pajcha Pata, Bolivia.
Horizon: Lower El Molino Formation.
Biostratigraphy:
Age: Maastrichtian, uppermost Senonian subepoch, Upper Upper Gulf Epoch, Late Cretaceous.
Material: 1 trunk vertebrae.
Referred material:
46 vertebrae.
GAYET, MARSHALL, SEMPERE, MEUNIER, CAPPETTA & RAGE, 2001Locality: Vila Vila, near Cochambamba, Cochabamba Department, Bolovia.
Horizon: Lower Member, El Molino Formation.
Biostratigraphy:
Age: Middle Maastrichtian Stage, uppermost Senonian subepoch, Gulf Epoch, Late Cretaceous.
Material:
Number: Not given: 16 vertebrae.