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Qianzhousaurus (meaning "Qianzhou lizard") is a genus of tyrannosaurid dinosaur that lived in Asia during the Maastrichtian age of the Late Cretaceous period. There is currently only one species named, the type species Qianzhousaurus sinensis, which is a member of the tribe Alioramini and most closely related to Alioramus, the only other known alioramin.
In all examples, the evidence described consists of feather impressions, except those genera inferred to have had feathers based on skeletal or chemical evidence, such as the presence of quill knobs (the anchor points for wing feathers on the forelimb) or a pygostyle (the fused vertebrae at the tail tip which often supports large feathers). [1]
Supported four long feathers coming out from an abbreviated tail Equijubus: 2003 Xinminbao Group (Early Cretaceous, Albian) China: A grazer that preserves the oldest known evidence of grass-eating [42] Erketu: 2006 Bayan Shireh Formation (Late Cretaceous, Cenomanian to Santonian) Mongolia: May have had the longest neck of any dinosaur relative ...
Specimens identified as immature Tarbosaurus have the same tooth count as adults. [14] [15] The description of Qianzhousaurus in 2014 erected a new branch of the tyrannosaur family named Alioramini; consisting of the long-snouted Q. sinensis and the two known species of Alioramus. This clade had an uncertain placement relative to other members ...
Cladogram showing distribution of feathers in Dinosauria, as of 2019. The groups that are marked with scales did not necessarily lack feathers but simply have never been found with feather impressions. The following cladogram is from Xu (2020). [66] Slender monofilamentous integument; Broad monofilamentous integument; Basally joining ...
About 148 to 150 million years ago, a strange pheasant-sized and bird-like dinosaur with elongated legs and arms built much like wings inhabited southeastern China, with a puzzling anatomy ...
The name Alioramini was first coined in 1995 by George Olshevsky only to contain the at-the-time uncertain Alioramus.Olshevsky classified Alioramini within the base of Tyrannosaurinae and considered it to be a tribe or a "paratribe" (a name for a paraphyletic tribe, emphasizing Olshevsky's view that the hypothetical common ancestor of tyrannosaurids could be classified as an alioramin). [8]
The Asiatyrannus holotype is about half the length of the contemporary Qianzhousaurus. However, the holotype of Asiatyrannus did not belong to a skeletally mature individual, and as such, it would have been larger when fully grown. Nevertheless, it had probably passed through the life stages of most rapid growth, and other tyrannosaurines in ...