Genus: Effigia NESBITT & NORELL, 2006
Etymology: Latin, effigia, "ghost."
Species: okeeffeae NESBITT & NORELL, 2006
Etymology: In honor of Georgia O'Keeffe of her numerous paintings of the
badlands at Ghost Rhanch and her interest in the Coelophysis Quarry when it
was discovered.
Holotype: AMNH FR 30587
Locality: Ghost Ranch Quarry or the Whitaker Quarry, SE 1/4, SE. 1/4, SW 1/4, Section 1, Township 24 North, Range 4 East, Rio Arriba County, New Mexico.
Horizon: Rock Point Formation, Chinle Group.
Biostratigraphy:
Age: Apachean, Late Norian Stage, Upper Late Triassic Epoch, Late Late Triassic.
Material: An articulated skeleton including a nearly complete skull.
Referred material:
AMNH FR 30588: Articulated pelvis, femur and caudal vertebrae.
AMNH FR 30589: A partial skull with associated cervical vertebrase and partial hind limbs.
AMNH FR 30590: Femur.