Species: keysei WIFFEN & MOISLEY, 1986
Etymology:
Referred material:
Locality: V19/f6508a, Mangahouanga Stream, North Island, New Zealand.
Horizon: Piripauan-Haumurian.
Biostratigraphy:
Age: Campanian-Maastrichtian Stage, Senonian Subepoch, Gulf Epoch, Late Cretaceous.
Material:
NZGS, CD427: Fragmentary skull, and incomplete skeleton of a juvenile.
Note: Found with 30 round gastroliths.
O'GORMAN, SCASSO & MEDINA, 2026
Locality: Puesto Ybarra Locality, Estancia El Porvenir, Middle Cubut River, Northwestern Chubut Province, Patagonia, Argentina.
Horizon: Lefipan Formation.
Biostratigraphy:
Age: Maastrichtian Stage, Upper Senonian Subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
MPEF-PV 12001: Fragmentary skull, and mandible, 8 dorsal vertebrae, ribs, a scapula representing by natural moulds, humerus, radius, ulna, carpus, phalanges, and gastroliths.