Genus: Kosmoceratops SAMPSON, LOEWEN, FARKE, ROBERTS, FORSTER, SMITH & TITUS,
Etymology: Greek, kosmos, "ornamented," and Greek, ceratops, "horned face."
Species: richardsoni SAMPSON, LOEWEN, FARKE, ROBERTS, FORSTER, SMITH & TITUS,
Etymology: In honor of Scott Richardson, who discovered the holotype and many other significant fossils from GSENM.
= Genus: Nova New Taxon C GETTY, LOEWEN, TITUS & SAMPSON, 2007
Holotype: UMNH VP 17000
Locality: UMNH VP Locality 890, Richardson's Horse Mountain Ceratopsian, Grand Staircase-Escalante National Monument, Garfield County, south-cental Utah.
Horizon: Kaiparowits Formation.
Age: Judithian Age, Upper Campanian Stage, Upper Senonian subepoch, Upper Upper Gulf Epoch, Late Cretaceous.
Material: Nearly complete skull.
UMNH VP 12198: Disarticulated skull of a subadult individual.