Genus: Sphenofontis VILLA, MONTIE, RÖPER, ROTHGAENGER & RAUHUT, 2021
Etymology: Genus name combines the prefix Spheno-, with reference to the taxon being a sphenodontian, and Lain, fontis (genative of fons), "srping, but also well": Roughtlin meaing "the sphenodontian of the well." This acknowledges teh origin of the name of the type locality Brunn, which comes from the German Brunnen (= well).

Species: velserae VILLA, MONTIE, RÖPER, ROTHGAENGER & RAUHUT, 2021
Etymology: in honor of Lisa Velser, who discovered and prepared the holotype specimen.

Holotype: SNSB-BSPG 1993 XVIII 4

Locality: Brunn quarry, Bavaria State, Germany.

Horizon: Ebenwies member, Torleite Formation.

Biostratigraphy: Subeumela Subzone.

Age: Kimmeridgian Stage, Malm Epoch, Late Jurassic.

Material: Skull and skeleton.