Species: americana (CLAYPOLE, 1885) WHITELY, 1940
Etymology:
= Palaespis americana CLAYPOLE, 1885

Holotype:

Locality: Perry County, Pennsylvania.

Horizon: Landisburg sandstone member, Wills Creek Formation.

Biostrtigraphy:

Age: Late Silurian.

Material:

Referred material:

FMNH PF 3822: Cast of type.

BRYANT, 1926

Locality: Perry County, Pennsylvania.

Horizon: Bloomsburg shale.

Biostrtigraphy:

Age:

Material: Fragmentary specimens.

= Palaeaspis bitruncata CLAYPOLE, 1884
Etymology:

Holotype:

Locality:

Horizon:

Biostrtigraphy:

Age:

Material:

Referred material:

BRYANT, 1926

Locality: Perry County, Pennsylvania.

Horizon: Bloomsburg shale.

Biostrtigraphy:

Age:

Material: Fragmentary specimens.

= Palaeaspis elliptica CLAYPOLE, 1885
Etymology:

Holotype:

Locality:

Horizon:

Biostrtigraphy:

Age:

Material:

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Species: claypolei DENISON, 1964
Etymology:

Holotype: FMNH PF 866

Locality: Locality La, about 1.75 miles southsoutheast of Graham Station, Shin Hollow along Erie Railroad tracks, Greenville township, Orange County, New York.

Horizon: Longwood Shale, High Falls Formation.

Biostrtigraphy:

Age: Late Silurian.

Material: Dorsal shield.

Paratypes:

FMNH PF 862: Incomplete dorsal shield.

FMNH PF 865: Fragments of dorsal shields.

FMNH PF 3641: Incomplete dorsal shields.

FMNH PF 3643: Incomplete dorsal shields.