Genus: Crosbysaurus HECKERT, 2004
Etymology: In reference to Crosby County, Texas, which yielded the type specimen, and Greek, sauros, ‘lizard’: Crosby lizard.
= Crosbysaurus HECKERT, 2001 (nomen nudum)
= Crosbysaurus HECKERT, 2002 (nomen nudum)

Species: harrisae HECKERT, 2004
Etymology: In honor of Susan Harris, who picked the vast majority of all NMMNH microvertebrate specimens from the Tecovas Formation.
= Crosbysaurus harrisae HECKERT, 2001 (nomen nudum)
= Crosbysaurus harrisae HECKERT, 2002 (nomen nudum)

Holotype: NMMNH P-34200

Locality: NMMNH Locality 1312, Crosby County, Texas.

Horizon: Colorado City Member, Dockum Formation, Chinle Group (Lower Kalgary).

Biostratigraphy:

Age: Upper Otischalkian, Late Carnian Stage, Lower Late Triassic Epoch, Late Triassic.

Material: A nearly complete tooth crown.

Paratypes:

NMMNH P-34201, P-34260, P-34262, P-34393, P-34394, P-34497: 6 teeth.

Referred material:

= aff. Crosbysaurus harrisae

NMMNH P-34347: Conical tooth.

 

Locality: NMMNH 1430, at the head of the south fork of Home Creek north of Kalgary Locality, UTM 3701500N, 398850E, zone 14, NAD 27, Crosby County, Texas.

Horizon: Colorado City Member, Tecovas Formation, Chinle Group.

Biostratigraphy:

Age: Adamanian, Latest Carnian Stage, Late Triassic Epoch, Late Triassic.

Material:

NMMNH P-26396: Numerous fragments of graduated ornithischian teeth.

NMMNH P-34408: A worn, incomplete tooth crown with root that is very similar to P-34404.

NMMNH P-34409: A low conical, laterally compressed tooth with very coarse compound denticles basally and relatively few fine denticles apically.

= aff. Crosbysaurus harrisae

NMMNH P-26395: 9 incomplete tooth crowns.

NMMNH P-26394: Premaxillary (?) tooth.

NMMNH P-26397: Premaxillary (?) tooth.

 

Locality: NMMNH Locality 2739, Sixmile Springs, New Mexico.

Horizon: Bluewater Creek Formation, Lower Chinle Group.

Biostratigraphy:

Age: Adamanian, Latest Carnian Stage, Late Triassic Epoch, Late Triassic.

Material:

NMMNH P-18402: Tooth.

NMMNH P-18403, P-18404: Fragments of teeth.

 

Locality: Dying Grounds, PEFO 122, Apache County, Arizona.

Horizon: Upper Blue Mesa Member, Petrified Forest Formation, Chinle Group.

Biostratigraphy:

Age: Adamanian, Latest Carnian Stage, Late Triassic Epoch, Late Triassic.Material:

PEFO 20336: Tooth.