Genus: Breugnathair BENSON, WALSH, GRIFFITHS, KULUK, BOTHA, FERNANDEZ, HEAD & EVANS, 2025
Etymology: Scotish Gaelic, Br'iag Nahir, "false snake".

Species: elgolensis BENSON, WALSH, GRIFFITHS, KULUK, BOTHA, FERNANDEZ, HEAD & EVANS, 2025
Etymology: In reference to the locality of discovery, north of the village of Elgol on the Strathaird Peninsula of the Isle of Skye.

Holotype: NMS G.20243.7.1

Locality: Elgol Coast Site of Special Scientific Interest (Elgol Coast SSI), Inverness-Shire County, Highland Province, Isle of Skye, Scotland.

Horizon: Elgol Lagerstätte, Kilmaluag Formation.

Biostratigraphy:

Age: Bathonian Stage, Dogger Epoch, Middle Jurassic.

Material: Fragmentary skull and fragmentary skeleton.