Species: portlocki CLACK, & AHLBERG, 2004
Etymology: In honor of J. E. Portlock.

Holotype: GSM 28498

Locality: Uncertain, probably County Londonderry, Northern Ireland.

Horizon:

Biostratigraphy: claviger-macra palynozone.

Age: Probably late Tournaisian or late Visean Epoch, earliest Mississippian Sub-Epoch (North America), earliest Carboniferous.

Material: A partial lower jaw ramus.