Species: threiplandi WATSON, 1934
Etymology:

Holotype: DMSW P461

Locality: Achanarras Quarry, Caithness County, Scotland.

Horizon: Middle Old Red Sandstone, Upper Lower Caithness Flagstone Group, Achanarras Horizon.

Biostratigraphy:

Age: Eifelian Stage, Lower Mid Devonian, Middle Devonian.

Material: Fragmentary specimen.

Referred material:

MILES, 1967

RSM 1965.43, specimen collected by Dr. A. Ritchie in 1964, FR 1362, BM (NH) p.29540-29542, 29544-29549: Fragmentary specimens.

Locality: S. E. Bank of the Allt Muigh-bhlaraidh at Blackpart, 3.5 km WSW of Edderton Church, Ross-Shire, Parish, Edderton, Ross & Comarty County, Scotland.

Horizon:

Biostratigraphy:

Age: Eifelian Stage, Lower Mid Devonian, Middle Devonian.

Material:

CNHM PF 1660, 1674-1695, RSM FR 1804: Fragmentary specimens.

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Species: trispanatus WATSON, 1937-38
Etymology:

Holotype:

Locality: Moray Firth nodule beds, Moray County, Scotland.

Horizon: Middle Old Red Sandstone, Upper Lower Caithness Flagstone Group, Achanarras Horizon.

Biostratigraphy:

Age: Eifelian Stage, Lower Mid Devonian, Middle Devonian.

Material: Fragmentary skull and fragmentary skeleton.

Referred material:

MILES, 1967

RSM 1938.42, F.M., Altyre Colletion Nos. 14, 19: Fragmentary specimen.

Locality: Cromarty, Ross & Cromarty Counties, Scotland.

Material:

Biostratigraphy:

Age: Eifelian Stage, Lower Mid Devonian, Middle Devonian.

Material:

RSM 1859.33.84, 1859.33.607: Fragmentary specimen.

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