Species: latibuccatus COPE, 1878 (nomen dubium)
Etymology:
= Empedoceles latibuccatus (COPE, 1878) 1880 (nomen dubium)
= Empedias latibuccatus (COPE, 1878) 1883 (nomen dubium)

Holotype: AMNH 4377

Locality: Texas.

Horizon:

Biostratigraphy:

Age: Early Permian.

Material: A fragmentary maxilla.
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Species: alatus (COPE, 1878) emend KUHN, in CARROLL, KUHN & TARATINOV, 1972 (nomen dubium)
Etymology:
= Empedoceles alatus COPE, 1878 (nomen dubium)
= Empedias alatus (COPE, 1878) 1888 (nomen dubium)
= Diadectes (Empedias) alatus (COPE, 1878) KUHN, in CARROLL, KUHN & TARATINOV, 1972

Holotype: AMNH 4351

Locality: Texas.

Horizon:

Biostratigraphy:

Age: Early Permian.

Material: Numerous vertebrae.
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Species: rapidens (COPE, 1878) (nomen dubium)
Etymology:
= Bolosaurus rapidens COPE, 1878 (nomen dubium)
= Chilonyx rapidens (COPE, 1878) COPE, 1883 (nomen dubium)
= Diadectes (Chilonyx) rapidens (COPE, 1878) KUHN, in CARROLL, KUHN & TARATINOV, 1972

Holotype: AMNH 4356

Locality: Moonshine Creek, Wichita Basin, Texas.

Horizon:

Biostratigraphy:

Age: Early Permian.

Material: Tooth.

Referred material:

AMNH 4357: Fragmentary skull and fragmentary skeleton.

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Species: fossatus (COPE, 1878) OLSON via ROMER & PRICE, 1940 (nomen dubium)
= Metamosaurus fossatus COPE, 1878 (nomen dubium)
Etymology:

Holotype: AMNH 4011

Locality: Texas.

Horizon:

Biostratigraphy:

Age: Early Permian.

Material: Several vertebrae.