Navajoceratops

Navajoceratops Temporal range: Late Cretaceous, ~75.0–73.4 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
Holotype parietals from the front and back
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Clade:	Dinosauria
Clade:	†Ornithischia
Clade:	†Neornithischia
Clade:	†Ceratopsia
Family:	†Ceratopsidae
Subfamily:	†Chasmosaurinae
Genus:	†Navajoceratops Fowler and Freedman Fowler, 2020
Type species
†Navajoceratops sullivani Fowler and Freedman Fowler, 2020

Navajoceratops (meaning "Navajo horned face") is a genus of ceratopsid dinosaur from the late Cretaceous Period of what is now North America. The genus contains a single species, N. sullivani, named after Robert M. Sullivan, leader of the expeditions that recovered the holotype.^[1]

Geological map of the southeast San Juan Basin; A (lower right) is where the holotype was found

The holotype specimen, SMP VP-1500, collected in 2002, consists of a partial skull. It was discovered in the Campanian Hunter Wash Member of the Kirtland Formation, New Mexico.^[1] It was informally named in 2016.^[2]

Navajoceratops was a member of the Chasmosaurinae. Alongside fellow chasmosaurine Terminocavus, also from the Kirtland Formation and described in the same paper, Navajoceratops was found to represent a stratigraphic and morphological intermediate between Pentaceratops and Anchiceratops. Navajoceratops was also found to be marginally less derived than Terminocavus. ^[1]

Chasmosaurinae	Chasmosaurus Vagaceratops Kosmoceratops Coahuilaceratops Pentaceratops Utahceratops Navajoceratops Terminocavus Anchiceratops Arrhinoceratops Triceratopsini

See also

• Timeline of ceratopsian research

References

1. Fowler, D.W.; Freedman Fowler, E.A. (2020). "Transitional evolutionary forms in chasmosaurine ceratopsid dinosaurs: evidence from the Campanian of New Mexico". PeerJ. 8: e9251. doi:10.7717/peerj.9251. PMC 7278894. PMID 32547873.
2. Denver Warwick Fowler (April 2016). "Dinosaurs and time: chronostratigraphic frameworks and their utility in analysis of dinosaur paleobiology". scholarworks.montana.edu. Retrieved 17 February 2019.