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Temporal range:
Early Cretaceous, Albian
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Clade: Dinosauria
Order: Ornithischia
Suborder: Stegosauria
Family: Stegosauridae
Genus: Mongolostegus
Tumanova and Alifanov, 2018
Type species
Mongolostegus exspectabilis
Tumanova and Alifanov, 2018

Mongolostegus is a genus of stegosaur from the Early Cretaceous (Aptian-Albian) of Mongolia. The type and only species is M. exspectabilis, known from a single specimen previously under the nomen nudum Wuerhosaurus mongoliensis.[1]

History of study[edit]

Mongolostegus was first reported by Alifanov et al. (2005) and Alifanov (2012) as an indeterminate stegosaur based on posterior dorsal and anterior caudal vertebrae as well as pelvic material.[2][3] Ulansky (2014) informally dubbed the material Wuerhosaurus mongoliensis, but Galton and Carpenter (2016) found W. mongoliensis to be invalid.[4] It was formally named as Mongolostegus by Tumanova and Alifanov in 2019.[1]

See also[edit]


  1. ^ a b T. A. Tumanova & V. R. Alifanov (2018) First Record of Stegosaur (Ornithischia, Dinosauria) from the Aptian-Albian of Mongolia. Paleontological Journal 52(14) DOI:
  2. ^ Alifanov, B.P., Tumanova, T.A. & Kurzanov, C.M. (2005): [First discovery of a stegosaur in Mongolia]. – Priroda, 12: 61-63. (In Russian).
  3. ^ Alifanov, B.P. (2012): [Fossil Vertebrates of Russia and Adjacent Countries. Fossil Reptiles and Birds. Part 2]; Moscow (GEOS). (In Russian).
  4. ^ Galton, Peter M.; Carpenter, Kenneth M (2016). "The plated dinosaur Stegosaurus longispinus Gilmore, 1914 (Dinosauria: Ornithischia; Upper Jurassic, western USA), type species of Alcovasaurus n. gen". Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen. 279 (2): 185–208. doi:10.1127/njgpa/2016/0551.