Species: huxleyi HANCOCK & HOWSE, 1870
Etymology: In honor of Thomas Henry Huxley.

Holotype: NEWHM G.026.49

Locality: Railway cutting, 1 km south-south-west of Middridge, (NZ 2455 2535), Durham County, England.

Horizon: Marl Slate.

Biostratigraphy:

Age: Ufimian Stage-Lowest Kazanian Substage, Wordian Stage, Lower Guadelupian Stage, Lower Zechstein Epoch, Late Permian.

Material: Fragmentary skeleton.