Genus: Eotriconodon BUTLER, & SIGOGNEAU-RUSSELL, 2016RINGTON, 1941
Etymology: Greek, eos, “dawn", in reference to the age of the new form with respect ot most other tricondontids.

Species: sophron BUTLER, & SIGOGNEAU-RUSSELL, 2016
Etymology: From sophron, discrete.

Holotype: M46736

Locality: Old Cement Works Quarry, (Washford Quarry), Kirtlington, Ordnance Survey Grid Reference SP 495200, Oxfordshire County, England, Southern United Kingdom.

Horizon: Kirtlington Mammal bed, near base of the Forest Marble.

Biostratigraphy: Oppelia aspidioides Zone.

Age: Upper Bathonian Stage, upper middle Dogger Epoch, Middle Jurassic.

Material: A right lower molar.