Species: crouchi (LANKESTER, 1868) ZYCH, 1931
= Pteraspis crouchi LANKESTER, 1868
= Pteraspis subgenus Belicaspis crouchi (LANKESTER, 1868) ZYCH, 1931

Holotype:

Localites: England, Belgium, Podolia, and Germany.

Horizon:

Biostratigraphy:

Age: Upper Gedinnian, Lochkovian Stage, Early Devonian Epoch, Early Devonian.

Material:

Referred material:

COUJET & BLIECK, 1979

PEA 002

Locality: Pernes, (carriere Quest, niveau d), “Schistes et Gres de Pernes”, North France.

Horizon:

Biostratigraphy:

Age: Early Devonian.

Material: Rostral plate.

Locality: Lieven, puites 6 (entre 135 et 270,70m) “Schistes et Gres de Pernes”, North France.

Horizon:

Biostratigraphy:

Age: Early Devonian.

Material:

LIE 009: Fragmentary rostral plate.

LIE 001, 004, 005, 006, 006a, 011, 018, 023, 024, 026, 029, 030, 037: Rostral plates.

LIE 031: Preoral plate.

LIE 042: Pineal plate.

LIE 008, 010, 014, 033: Orbital plate.

LlE 015: Fragment of a dorsal plate

LIE 012, 017, 028: Dorsal spine.

LIE 035: Fragment of plate.

LIE 036: Fragment of plate.

Locality: Lieven, puits 8 (entre 142 et 431m), “Schistes et Gres de Pernes”, North France.

Horizon:

Biostratigraphy:

Age: Early Devonian.

Material:

LIE 101, 101a: Dorsal plate.

DINELEY, 1967

Locality: Crags on eastern flank of small valley, at 500 feet above sea level, 700 yards south of road junction Ardness-Knoydart-Eigg Mountain, Pictou County, Nova Scotia Province, Canada.

Horizon: Knoydart Formation.

Biostratigraphy:

Age: Early Devonian.

Material:

N.M.C. 10391-10410, 11444-11460, 11489-111509: A collection of over 50 fragments and pieces, mostely dorsal or ventral discs, but with some few fragments of other plates.

DOLLE, 1950

Locality: Lieven, France.

Horizon:

Biostratigraphy:

Age: Early Devonian.

Material:

Number: Not given: Fragmentary remains of several specimens.

WHITE & TOOMBS, 1983

Locality: Pool Quarry, 350 feet (110m) above P.L. 3 ½ miles (5.6 km) SSE of Wayne Herbert, Abergavenny, Gwent County, England.

Horizon:

Biostratigraphy:

Age:

Material:

Number: Not given.

Locality: Cwm Mill, 1 ¼ miles (2 km) NE of Abergavenny and 10 ½ miles (17km) SSW of Wayne Herbert, Abergavenny, Gwent County, England.

Horizon:

Biostratigraphy:

Age:

Material:

Number: Not given.

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Species: var. maatockensis
Etymology:

Holotype:

Locality:

Horizon:

Biostratigraphy:

Age:

Material:

Referred material:

WHITE & TOOMBS, 1983

Number:

Locality: Pool Quarry, 350 feet (110m) above P.L. 3 ½ miles (5.6 km) SSE of Wayne Herbert, Abergavenny, Gwent, England.

Horizon:

Biostratigraphy:

Age:

Material:

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