Genus: Tichosteus COPE 1877 (nomen dubium)
Etymology: Greek, teichos, “proctive wall”, Greek, osteon, “bone” and -us: “Wall-boned one”.

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.