Species: campelli NICHOLLS & BRINKMAN, 1993
= Gyrognathus campbelli NICHOLLS & BRINKMAN, 1990 (nomen nuda)
Holotype: RTMP 89.127.19
Locality: "D" crique, near Wapiti Lake, 54'31"10'"N, 120'43"19'"W, British Columbia Province, Canada.
Horizon: Sulphur Mountain Formation.
Age: Griesbachian to Spathian in Stage, Upper Scythian Epoch, Late Early Triassic.
Material: Incomplete and disarticulated skull and mandibles, elements include
premaxilla, maxilla, vomer, both dentaries, angular, splienial (?) and unidentified