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.