Species: ostromi HUNT & LUCAS, 1993
Etymology: In honor of John Ostrom.
Holotype: NMMNH P16106
Locality: San Juan Basin, New Mexico.
Horizon: De-na-zin Member (not Naashoibito Member), Lower Kirtland Formation.
Biostratigraphy:
Age: Judithian age, Upper Campanian Stage, Senonian Subepoch, Gulf Epoch, Late Cretaceous.
Material:
Note: Paleopathology, extensive healed scars of the posterior skull roof (HORNER, 1992).