Species: ovatus BRYANT, 1932
Etymology:

Holotype:

Locality:

Locality: Beartooth Butte, Park County, Wyoming.

Horizon:

Biostratigraphy:

Age: Late Devonian.

Referred material:

BRYANT, 1933

13533: Fragmentary dorsal shield.

14651: Left side of median dorsal plate with wide brancial plate attached.

BRYANT, 1936

13860: Complete dorsal sheild.

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Species: papillatus BRYANT, 1933
Etymology:

Holotype: 12534

Locality: Beartooth Butte, Park County, Wyoming.

Horizon:

Biostratigraphy:

Age: Late Devonian.

Material: A mould of the visceral surface of a dorsal shield.

Referred material:

BRYANT, 1934

12742: Dorsal shield.
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Species: sculptus BRYANT, 1933
Etymology:

Holotype; 13550

Locality: Beartooth Butte, Park County, Wyoming.

Horizon:

Biostratigraphy:

Age: Late Devonian.

Material: A dorsal shield lacking rostral region.
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Species: falcatus BRYANT, 1933
Etymology:

Holotype: 13575

Locality: Beartooth Butte, Park County, Wyoming.

Horizon:

Biostratigraphy:

Age: Late Devonian.

Material: A fragmentary dorsal shield.
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