Genus: Stylidens BUTLER, & SIGOGNEAU-RUSSELL, 2016
Etymology: Latin, stylus, "pointed instrument" and Latin, dens, "tooth"; in refernce to the shape of the cusps.

Species: hookeri BUTLER, & SIGOGNEAU-RUSSELL, 2016
Etymology: In honor of Dr. J. Hooker, in recognition of his contiributions to knowledge of British fossil mammals.

Holotype: M84127

Locality: Watton Cliff, Dorset County, England, Southern United Kingdom.

Horizon:

Biostratigraphy:

Age: Late Bathonian Stage, Middle Dogger Epoch, Middle Jurassic.

Material: A right lower molar with tip of cusp c broken off..