Holotype:
Locality: NMMNH locality-3845, Snyder Quarry, Near Ghost Ranch, Rio Arriba County, New Mexico.
Horizon: Petrified Forest Formation, Chinle Group.
Biostratigraphy:
Age: Revueltian, Early Norian Substage, Early Norian Epoch, Middle Late Triassic Epoch, Late Triassic.
Material:
NMMNH P-30852: Fragmentary skull.
NMMNH P-39047: Incomplete right ischium and right ilium.
NMMNH P-29046: Right femur..
NMMNH P-31293: Left tibia.
2 incomplete fibulae.
Note: Coelophysis size.