Genus: Peloneustus LYDEKKER, 1889
Etymology: Greek, pelos, “mud, clay”, Greek, neustes, “swimmer”: Oxford clay swimmer.

Species: philarchus (SEELEY, 1869) LYDEKKER, 1889
Etymology:


Holotype: CAMSM (Sedgwick Museum) J. 46913

Locality: Peterborough, Cambridgeshire County, England, Southern United Kingdom.

Horizon: Oxford Clay.

Biostratigraphy:

Age: Callovian Stage, Upper Dogger Epoch, Late Jurassic.

Referred material:

BMNH R3317: Fossilized contents of the stomach (cephalopods and gastroliths) lying within ribs.