Genus: Wahlisaurus LOMAX, 2016
Etymology: In honor of William (Bill) Wahl for his contribution to the study of Mesozoic marine reptiles and for introducing the author to the study of the group, and Greek, sauros, "lizard."

Species: massarae LOMAX, 2016
Etymology:In honor of Professor Judy Massare for her significant contribution to the study of Mesozoic marine reptiles, especially ichthyosaurs, dn for introducing the author to the study of the group.

Holotype: LEICT G454.1951.5

Locality: Normanton Hills, near Normanton on Soar, Nottinghamshire County, England, Southern United Kingdom.

Horizon: Barnstone Member, perhaps the Scunthorpe Mudstone Formation. .

Biostratigraphy: Either the top of the Pre-planorbis beds or base of the planorbis zone.

Age: Lowermost Hettangian Stage, Lowermost Lias Epoch, Earliest Early Jurassic.

Material: A partial skull and an associated incomplete skeleton comprising the pectoral girdle, humeri, pelvic elements, partial hind fins, vertebrae and ribs.