Species: lucasanus COPE, 1877 (nomen dubium)
Etymology: In honor of O.W. Lucas.
Holotype: AMNH 5770
Locality: Garden Park, Canon City, Fremont County, Colorado.
Horizon: Member? Morrison Formation.
Biostratigraphy: Zone?
Age: Age? Stage? Malm Epoch, Late Jurassic.
Material: Centra of a juvenile.
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Species: ? aequifacies COPE, 1878 (nomen dubium)
Etymology: Latin, aequi, "level, equil" and Latin, facies, "shape."
Holotype: AMNH 5771
Locality: Near Canon City, Fremont County, Colorado.
Horizon: Member? Morrison Formation.
Biostratigraphy: Zone?
Age: Age? Stage? Malm Epoch, Late Jurassic.
Material: Centra.