Genus: Paceyodon CLEMENS, 2011
Etymology: In honor of Dr. David Pacey, who undertook the first analysis of the vertebrate fauna of the Pant 4 fissure filing, discovered the holotype of the type species and recognized its significance, and Greek, odon, “tooth”

Species: davidi CLEMENS, 2011
Etymology: In honor of Dr. David Pacey, who undertook the first analysis of the vertebrate fauna of the Pant 4 fissure filing, discovered the holotype of ht etype species and recognized its significance.

Holotype: NHMUK M45920

Locality: Pant 4 fissure filling, Pant Quarry, South Glamorgan, South Wales County, Wales, Southern United Kingdom.

Horizon:

Biostratigraphy:

Age: Early Jurassic.

Material: Right lower molariform.

Referred material:

DEBUYSSCHERE, GHERRBRANT, & ALLAIN, 2014

Locality: Quarry of Saint-Nicolas-de-Port, situated on the commune of Rosieres-aux-Salines, Lorraine, Meurthe-et-Moselle Department, France.

Horizon: "Gres infraliasques" Formation.

Biostratigraphy:

Age: Lower Rheatian Stage, Uppermost Late Triassic Epoch, Late Triassic.

Material:

SNP 2001: Left lower molar.