Genus: Durnonovariaodus STUMPF, ETCHES, UNDERWOOD & KRIWET, 2021
Etymology: in reference to Durnonovaria, teh ancient name of the town of Dorchester from which the name Dorset derives, and Greek, odus, "tooth."
Species: maiseyi STUMPF, ETCHES, UNDERWOOD & KRIWET, 2021
Etymology: In honor of John Maisey for his significant work on better understanding hybodontiform taxonomy and systematics and his contribution to the field of palaeoichthyology in general.
Holotype: MJML K1624
Locality: Freshwater Steps, Encome, Dorset County, England, Southern United Kingdom.
Horizon: Kimmeridge Clay Formation.
Biostratigraphy: Pectinatites pectinatus ammonite zone.
Age: Early Tithonian Stage, Malm Epoch, Late Jurassic.
Mateiral: A slab preserving disarticulated elements of the splanchnocranium with associated teeth, numberous dermal denticles, a single fragmentary fing spine, and the pelvic girdle, plus abundant cartliage fragments of uncertian identity.