Bayannurosaurus

Bayannurosaurus is a non-hadrosauriform ankylopollexian ornithopod described in 2018 by Xu et al from the early Aptian (Early Cretaceous) found in the Bayin-Gobi Formation of China.[1] The genus includes a new species Bayannurosaurus perfectus. A phylogenetic analysis of Bayannurosaurus indicates that it is more derived than Hypselospinus but less derived than Ouranosaurus just outside of Hadrosauriformes. It had a skull length of 80 cm, making it a mid-sized iguanodont.[1] By comparison Ouranosaurus had a 67 cm skull, and a length of 7 to 8.3 meters (23 to 27 feet). Though inexact, if this is used as a comparison to scale to, Bayannurosaurus would be 8.3 to 10 meters (27 to 33 feet) long. The genus name Bayannurosaurus comes from Bayannur, the area where it was found, while the species name perfectus comes from the "perfect" preservation of the holotype specimen. [1]

Bayannurosaurus
Temporal range: Aptian, 124 Ma
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Scientific classification
Kingdom: Animalia
Phylum: Chordata
Clade: Dinosauria
Order: †Ornithischia
Suborder: †Ornithopoda
Clade: †Styracosterna
Genus: †Bayannurosaurus
Xu et al, 2018
Type species
†Bayannurosaurus perfectus
Xu et al, 2018

See also

References
  1. Xu, Xing; Tan, Qingwei; Gao, Yilong; Bao, Zhiqiang; Yin, Zhigang; Guo, Bin; Wang, Junyou; Tan, Lin; Zhang, Yuguang; Xing, Hai (2018). "A large-sized basal ankylopollexian from East Asia, shedding light on early biogeographic history of Iguanodontia". Science Bulletin. doi:10.1016/j.scib.2018.03.016.


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