Fossil specimen of a juvenile J. prima (IVPP V13550), Paleozoological Museum of China
Scientific classification
Domain:
Eukaryota
Kingdom:
Animalia
Phylum:
Chordata
Clade:
Dinosauria
Clade:
Saurischia
Clade:
Theropoda
Clade:
Avialae
Order:
†Jeholornithiformes
Family:
†Jeholornithidae
Genus:
†Jeholornis Zhou & Zhang, 2002
Type species
†Jeholornis prima
Zhou & Zhang, 2002
Other species
†J. palmapenis O'Connor et al., 2012
†J. curvipes Lefèvre et al., 2014
Synonyms
Dalianraptor? Gao & Liu, 2005
Shenzhouraptor? Ji et al., 2002
Jeholornis (meaning "Jehol bird") is a genus of avialan dinosaurs that lived between approximately 122 and 120 million years ago during the early Cretaceous Period in China. Fossil Jeholornis were first discovered in the Jiufotang Formation in Hebei Province, China (in what was previously Rehe Province, also known as Jehol—hence the name) and additional specimens have been found in the older Yixian Formation.[1]
Jeholornis had long tails and few small teeth, and were approximately the size of turkeys,[2] making them among the largest avialans known until the Late Cretaceous. Their diet included seeds of cycads, Ginkgo or similar plants.
^Li, D.; Sulliven, C.; Zhou, Z.; Zhang, Z. (2010). "Basal birds from China: a brief review". Chinese Birds. 1 (2): 83–96. doi:10.5122/cbirds.2010.0002. S2CID 84976296.
^Holtz, Thomas R. Jr. (2008) Dinosaurs: The Most Complete, Up-to-Date Encyclopedia for Dinosaur Lovers of All Ages Supplementary Information
only partially reversed in both Jeholornis species, pointing inward and slightly backward. The halluces of Jeholornis were short, but their claw was more...
Jixiangornis capable of stronger flight than either Archaeopteryx or Jeholornis. Their phylogenetic tree shows Jixiangornis forming a clade (called "Euavialae"...
that the specimen is a chimera forged for the fossil trade, namely a Jeholornis with the arms exchanged by those of an unnamed flightless theropod. If...
Kompsornis as a jeholornithiform most closely related to Jeholornis prima and J. curvipes (Jeholornis 'sensu stricto'), and more derived than Shenzhouraptor...
stems from whether most of the taxa in the group are just specimens of Jeholornis, as well as if the group is monophyletic at all. In the description of...
synonymous) Wellnhoferia to be form a clade sister to the lineage including Jeholornis and Pygostylia, with Microraptoria, Unenlagiinae, and the clade containing...
Pg N Earliest 165 Ma if Anchiornithidae are members Fossil specimen of Jeholornis prima Collage of four extant birds. Clockwise from top-left: Spanish imperial...
the Aptian stage of the Early Cretaceous. Fossils of Microraptor and Jeholornis are from the Jiufotang. Several mammaliamorph specimens have been found...
reclassified as a secondarily flightless stem bird, closer to modern birds than Jeholornis (thus actually an example of insular gigantism). Wikinews has related...
bracketed by taxa known to have been herbivorous, such as Sapeornis and Jeholornis. This suggests a non-hypercarnivorous lifestyle to be a more parsimonious...
Continental relative Balaur B. bondoc Hateg Island Extinct (Late Cretaceous) Jeholornis Gargantuavis G. philohinos Ibero-Armorican Island Extinct (Late Cretaceous)...
Rahonavis as a probable relative of the long-tailed Early Cretaceous avialans Jeholornis and Jixiangornis. The analysis of Hartman et al. (2019) "strongly rejected"...
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