Turanoceratops tardabilis scale diagram. Artist: Unknown
Turanoceratops is an extinct genus of herbivorous ceratopsian dinosaur from the late Cretaceous Bissekty Formation of Uzbekistan. The fossils dated from the mid-late Turonian stage, roughly Later Cretaceous, 90 million years ago.
Discovery and naming[]
From the 1920s onwards, Soviet scientists discovered fragmentary fossils near Dzharakuduk in the district Navoi Viloyat, leading them to the conclusion that some ceratopsid must have been present. In 1988, paleontologist Lev Aleksandrovich Nesov based on these published the name Turanoceratops tardabilis, but did not provide a description so that for the time being it remained a nomen nudum.
In 1989, Nesov, L.F. Kaznysjkina and Gennady Olegovich Cherepanov validly named the type species Turanoceratops tardabilis. The generic name is a combination of Turan, an old Persian name for Turkestan, the general region of the finds, and ~ceratops, "horned face", a usual suffix in ceratopian names. The specific name means "retarding" in latin, referring to the protracted research.
The holotype, CCMGE No. 251/12457, consists of a damaged left maxilla, the tooth-bearing upper jaw bone. Other fossils have been referred but some of these later were proven to have belonged to other types of dinosaur. A braincase e.g. (specimen CCGME 628/12457) was shown to be of a sauropod, while presumed frill material actually represented Ankylosaur armour plates. Authentic material includes postorbitals with brow horn cores, teeth, a predentary and limb elements.
In 2004, Peter Dodson considered it a nomen dubium, but in 2009 Hans-Deiter Sues concluded that it was a valid taxon.
Description[]
Turanoceratops was a relatively small animal. In 2010, Gregory S. Paul estimated its length at two metres, its weight at 175 kilogrammes. Sues in 2009 determined some typically basal traits, indicating a lower position in the evolutionary tree, and some more derived traits, showing a higher position. Basal traits are the variably developed secondary ridges on the tooth crowns and the possession of just two or three teeth per tooth position.
Classification[]
The skull bore a pair of long brow horns like those seen in the Ceratopsidae, although Turanoceratops appears to have been transitional between earlier ceratopsians and ceratopsids, and not a ceratopsid itself. Turanoceratops belonged to the Ceratopsia, a group of herbivorous dinosaurs with parrot-like beaks which thrived in North America and Asia during the Cretaceous Period, which ended 66 million years ago. All ceratopsians became extinct at the end of this period.
Paleobiology[]
Turanoceratops, like all ceratopsians, was a herbivore. During the Cretaceous, flowering plants were "geographically limited on the landscape", and so it is likely that this dinosaur fed on the predominant plants of the era: ferns and conifers. It would have used its sharp ceratopsian beak to bite off the leaves or needles.
Gallery[]
Other Wikis[]
- https://prehistoric-wiki.fandom.com/wiki/Turanoceratops
- https://jurassic-park-institute.fandom.com/wiki/Turanoceratops