A new jawless vertebrate from the Middle Devonian of Scotland

A new jawless vertebrate, Cornovichthys blaauweni gen. et sp. nov., is desc ribed from a single complete specimen from the Achanarras fish bed at Achan arras Quarry in Caithness, northern Scotland. The Achanarras fish bed consi sts of lacustrine laminites and was deposited in a major deep-water phase o f the Orcadian lake during the deposition of the cyclic Caithness Flagstone Group. The Achanarras fish bed is of Middle Devonian (Eifelian) age. The n ew animal compares closely with Euphanerops, one of the Frasnian 'anaspids' (Hyperoartii) of the Escuminac Formation at Miguasha, Quebec, Canada.