Lokiceratops (meaning "Loki horned face") is an extinct genus of centrosaurine ceratopsian dinosaurs from the Late Cretaceous (Campanian) Judith River Formation of Montana, United States.
The Lokiceratops holotype specimen, EMK 0012, was discovered by Mark Eatman in 2019 in the Loki Quarry, representing outcrops of the Judith River Formation (McClelland Ferry Member) in the Kennedy Coulee.
This locality is situated in the badlands near Milk River and the town of Rudyard in Hill County, northern Montana, United States, close to the Canadian border.
Once fully ready for display, the holotype material was moved to the Museum of Evolution (Evolutionsmuseet) at the Knuthenborg Safaripark in Maribo, Lolland, Denmark, where it is now permanently reposited.
[1] In 2022—following the museum's acquisition of the specimen and prior to its academic description—the Knuthenbord Safaripark announced that the skeleton represented a new species of ceratopsian dinosaur that would eventually be named after a Norse god.
[2][3] In 2024, an international team of researchers led by Mark A. Loewen and Joseph J. W. Sertich published the description in PeerJ of Lokiceratops rangiformis as a new genus and species of centrosaurine ceratopsian based on these fossil remains.
The specific name, rangiformis, references the mammal genus Rangifer (commonly known as the caribou or reindeer) whose antlers are said to be bilaterally asymmetrical as in the frill ornamentations of Lokiceratops.
Their results are displayed in the cladogram below, along with comparative illustrations of the reconstructed frills of well-known genera:[1] Diabloceratops Machairoceratops Yehuecauhceratops Menefeeceratops Xenoceratops CPC 279 (Cerro del Pueblo Fm.
centrosaurine) Crittendenceratops Nasutoceratops Avaceratops specimens Lokiceratops Albertaceratops Medusaceratops Wendiceratops Sinoceratops Coronosaurus Spinops Centrosaurus Styracosaurus spp.