Aurornis is an extinct genus of anchiornithid theropod dinosaurs from the Jurassic period of China. The genus Aurornis contains a single known species, Aurornis xui (/aʊˈrɔːrnɪsˈʃuːi/).[1]Aurornis xui may be the most basal ("primitive") avialan dinosaur known to date, and it is one of the earliest avialans found to date. The fossil evidence for the animal pre-dates that of Archaeopteryx lithographica, often considered the earliest bird species, by about 10 million years.[1][2]
Aurornis xui was first described and named by Pascal Godefroit, Andrea Cau, Hu Dong-Yu, François Escuillié, Wu Wenhao and Gareth Dyke in 2013. The generic name is derived from the Latin word aurora, meaning "daybreak" or "dawn", and the Ancient Greek ὄρνις (órnis) meaning "bird". The specific name, A. xui, honors Xu Xing.[1] A recent study of specimens of the avialan Anchiornis has found that the traits exhibited by Aurornis fall within the range of variation in Anchiornis, warranting their synonymization.[3]
^ abcGodefroit, Pascal; Cau, Andrea; Hu, Dong-Yu; Escuillié, François; Wu, Wenhao; Dyke, Gareth (2013). "A Jurassic avialan dinosaur from China resolves the early phylogenetic history of birds". Nature. 498 (7454): 359–362. Bibcode:2013Natur.498..359G. doi:10.1038/nature12168. PMID 23719374. S2CID 4364892.
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^Pei, R.; Li, Q.; Meng, Q.; Norell, M.A.; Gao, K. (2017-04-13). "New specimens of Anchiornis huxleyi (Theropoda, Paraves) from the late Jurassic of northeastern China". Bulletin of the American Museum of Natural History. 411: 1–66. doi:10.1206/0003-0090-411.1.1. hdl:2246/6707. S2CID 90650697.
Aurornis is an extinct genus of anchiornithid theropod dinosaurs from the Jurassic period of China. The genus Aurornis contains a single known species...
Anchiornis, and Aurornis. Compared to Archaeopteryx, Xiaotingia was found to be more closely related to extant birds, while both Anchiornis and Aurornis were found...
and in some cases asymmetrical. However, Eosinopteryx, Serikornis, and Aurornis were preserved with short and downy tail feathering. Some studies on the...
The avialan species from this time period include Anchiornis huxleyi and Aurornis xui. Xiaotingia zhengi used to be considered a member, but was later classified...
from this time period include Anchiornis huxleyi, Xiaotingia zhengi, and Aurornis xui. The well-known probable early avialan, Archaeopteryx, dates from slightly...
demonstrating an example of evolutionary change following Bergmann's rule. Aurornis Lack's principle Origin of avian flight Origin of birds Survival of the...
pellets. The pellets contained lizard bones and ptycholepid fish scales. Aurornis Dinosaur coloration Smallest organisms The wingspan estimate is based on...
quadrangular than in Aurornis. The ischium does not show the particular dorsocaudally straight morphology that is proper of Aurornis, and has a narrow and...
Million Years of Evolution, where he included Microraptor, Xiaotingia, Aurornis, and Anchiornis; together they were proposed to be the sister group of...
diagram, accompanied by a life illustration of a "proavis". When in 2013 Aurornis was described, at the time the most basal known member of the Avialae,...
avialans have since been identified, including Anchiornis, Xiaotingia, and Aurornis. Kavanau (1987) was the first to find that unique bi-parental care seen...
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