a plant-eating stegosaurid thyreophoran dinosaur from the Early Cretaceous of China.
(Wuerho lizard with flat and wide hips)Etymology
is derived from "Wuerho" (a town close to its place of discovery) and the Greek "sauros" (lizard).
The species epithet
, means "flat and wide" in Latin, in reference to the design of its hips.
The fist fossils of Wuerhosaurus
were recovered from the Lianmugin Formation (Tugulu Group) near the town of Wuerho, Xinjiang, China.
(IVPP V.4006) is a skull-less fragmentary skeleton. Some tail bones (IVPP V4007) from a second individual were also discovered in the same bonebed.
: Early Cretaceous
: 145-136 mya
Est. max. length
: 7 meters
Est. max. hip height
: 2 meters
Est. max. weight
: 3.5 tons
(IVPP V6877—a fragmentary skeleton lacking the skull, and referred specimens IVPP V6878 and 6879 from the same locality) was discovered in the Ejinhoro Formation, Ordos Basin of Inner Mongolia, in 1988. A couple of meters shorter than Wuerhosaurus homheni
, perhaps two tons lighter and with a shorter neck, Wuerhosaurus ordosensis
was named in 1993 by Zhiming Dong. Maidment et al
. renamed it Stegosaurus homheni
in 2008, but most paleontologists still cast suspicious glances at it.
(PIN Coll.—back and tail vertebrae and a lump of pelvic girdle
from the Khukhtyk Formation) was coined by freelancer Roman Ulansky in 2014. Apparently, its hip is more massive and the spines on its vertebra are thicker and higher than other species of Wuerhosaurus
, and it sports a relatively large
spinal canal. But because of Ulansky's habit of naming dinosaurs willy-nilly based on material that other paleontologists have already dismissed as tat, plus the fact that his papers are only ever released in Russian, this critter may never be taken seriously by experts.
• Dong Z. (1973) "Dinosaurs from Wuerho. Reports of Paleontological Expedition to Sinkiang (II): Pterosaurian Fauna from Wuerho, Sinkiang". Memoirs of the Institute of Vertebrate Paleontology and Paleoanthropology.
• Dong Z. (1990) "Stegosaurs of Asia" in K. Carpenter and P. J. Currie (Eds.) "Dinosaur Systematics: Approaches and Perspectives
". (pp. 255-268).
• Dong Z. (1994) "A new species of stegosaur (Dinosauria) from the Ordos Basin, Inner Mongolia, People's Republic of China".
• Paul G.S. (2010) "The Princeton Field Guide to Dinosaurs
• Maidment S.C.R, Norman D.B, Barrett P.M, Upchurch P. (2008) "Systematics and phylogeny of Stegosauria (Dinosauria: Ornithischia)". Journal of Systematic Palaeontology 6(4):367–407.
• Ulansky, R. E. (2014) "Evolution of the stegosaurs (Dinosauria; Ornithischia)
". Dinologia, 35 pp.
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