Species: longicollis WELLES, 1984 (nomen dubium)
Etymology: Latin, longi, "long" and Latin, collum, "neck."
Holotype: AMNH 2705
Locality: New Mexico.
Horizon:
Biostratigraphy:
Age: Late Carnian-Early Norian Stage, Late Triassic Epoch, Late Triassic.
Material: A partial right ilium.