| Mongolostegus Temporal range: Early Cretaceous, Aptian–Albian PreꞒ Ꞓ O S D C P T J K Pg N | |
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| Skeletal reconstruction | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Dinosauria |
| Clade: | †Ornithischia |
| Clade: | †Thyreophora |
| Clade: | †Stegosauria |
| Family: | †Stegosauridae |
| Genus: | †Mongolostegus Tumanova and Alifanov, 2018 |
| Type species | |
| †Mongolostegus exspectabilis Tumanova and Alifanov, 2018 | |
| Synonyms | |
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Mongolostegus (meaning "Mongolian roof") is a genus of stegosaur from the Early Cretaceous (Aptian-Albian) Dzunbain Formation of Mongolia. The type and only species is M. exspectabilis, known from a single specimen previously under the nomen nudum Wuerhosaurus mongoliensis.
Mongolostegus is one of the youngest known stegosaurs, along with Stegosaurus, Yanbeilong, and an unnamed species from the Dzunbain Formation.
Discovery and description
The holotype is PIN 3779-15, which consists of posterior dorsal and anterior caudal vertebrae as well as pelvic material. It was discovered in a layer of the Dzunbain Formation at Chamrin-Us, Mongolia.
Mongolostegus was first reported by Alifanov et al. (2005) and Alifanov (2012) as an indeterminate stegosaur.
Ulansky (2014) informally dubbed the material Wuerhosaurus mongoliensis, but Galton and Carpenter (2016) found W. mongoliensis to be invalid. It was formally named as Mongolostegus by Tumanova and Alifanov in 2018.
Classification
Tumanova and Alifanov (2018) found Mongolostegus to belong to Stegosauridae.
See also
References
- ^ T. A. Tumanova & V. R. Alifanov. (2018). First Record of Stegosaur (Ornithischia, Dinosauria) from the Aptian-Albian of Mongolia. Paleontological Journal 52(14) DOI: https://doi.org/10.1134/S0031030118140186 https://link.springer.com/article/10.1134/S0031030118140186
- ^ Ulansky, Roman. E., (2014). Evolution of the stegosaurs (Dinosauria; Ornithischia). Dinologia, 35 pp. . PDF.
- Li, Ning; Li, Daqing; Peng, Guangzhao; You, Hailu (2024). "The first stegosaurian dinosaur from Gansu Province, China". Cretaceous Research. 158: 105852. Bibcode:2024CrRes.15805852L. doi:10.1016/j.cretres.2024.105852.
- Jia, Lei; Li, Ning; Dong, Liyang; Shi, Jianru; Kang, Zhishuai; Wang, Suozhu; Xu, Shichao; You, Hailu (2024-01-31). "A new stegosaur from the late Early Cretaceous of Zuoyun, Shanxi Province, China". Historical Biology: 1–10. doi:10.1080/08912963.2024.2308214. ISSN 0891-2963.
- Alifanov, B.P., Tumanova, T.A. & Kurzanov, C.M. (2005): . – Priroda, 12: 61-63. (In Russian).
- Alifanov, B.P. (2012): ; Moscow (GEOS). (In Russian).
- 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.
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