Genus: Macroplata SWINTON, 1930
Etymology: Greek, makros, “long, large” and Greek, plate, “a blade, and, especially in the pleura, the shoulder-blades”: Long blades.

Species: tenuiceps SWINTON, 1930
Etymology:

Holotype: BMNH R 5488

Locality: Messrs. Greaves, Bull and Lakin’s cement quarry at Harbury, near Leamington spa, Warwickshire County, England, Southern United Kingdom.

Horizon: Rugby Limestone Member, Blue Las Formation, Lias Group.

Biostratigraphy: Schlotheimia angulata Zone.

Age: Upper Hettangian Stage, Lower Lias Epoch, Early Early Jurassic.

Material: Skull and skeleton.