Zhyraornis
{{Short description|Extinct genus of dinosaurs}}
{{Automatic taxobox
| fossil_range = Turonian, {{fossilrange|92}}
| display_parents = 3
| grandparent_authority = Nesov, 1992
| parent_authority = Nesov, 1984
| taxon = Zhyraornis
| authority = Nesov, 1984
| type_species = {{extinct}}Zhyraornis kashkarovi
| type_species_authority = Nesov, 1984
| subdivision_ranks = Species
| subdivision =
- {{extinct}}Z. kashkarovi Nesov, 1984
- {{extinct}}Z. logunovi Nesov, 1992
}}
Zhyraornis is a genus of prehistoric bird from the late Cretaceous period (middle Turonian, 92 mya).Averianov, A.O. (2010). "[http://www.zin.ru/journals/trudyzin/doc/vol_314_3/TZ_314_3_Averyanov.pdf The osteology of Azhdarcho lancicollis Nessov, 1984 (Pterosauria, Azhdarchidae) from the Late Cretaceous of Uzbekistan]." Proceedings of the Zoological Institute of the Russian Academy of Sciences, 314(3): 246-317. Its fossils have been found in Bissekty Formation deposits near Dzharakuduk in the Kyzyl Kum, Uzbekistan. Two species have been assigned to this genus: Zhyraornis kashkarovi and Zhyraornis logunovi. Both are known only from partial pelvic bones (synsacra).
Classification
The relationships of this bird are unresolved. Paleontologist Lev Nesov originally classified in a distinct family (Zhyraornithidae)Nessov, L. (1984). ["Upper Cretaceous pterosaurs and birds from Central Asia."] Paleontologicheskii Zhurnal, 1: 47-57. and later suborder (Zhyraornithi)Nessov, L. (1992). "Review of localities and remains of Mesozoic and Paleogene birds of the USSR and the description of new findings." Russkii Ornitologicheskii Zhurnal, 1(1): 7-50. within the order Ichthyornithiformes. Kurochkin (1996) considered it to belong to the Enantiornithes, specifically the family Alexornithidae.Kurochkin (1996). "A new enantiornithid of the Mongolian Late Cretaceous, and a general appraisal of the Infraclass Enantiornithes (Aves)." Russian Academy of Sciences, special issue. 50 pp. In 2006, Kurochkin re-classified it as a primitive member of the lineage leading to modern birds, the Ornithuromorpha.Kurochkin (2006). "Parallel evolution of theropod dinosaurs and birds." Entomological Review, 86(suppl. 1): S45-S58.
References
{{Reflist}}
{{Paraves|B.}}
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Category:Late Cretaceous dinosaurs of Asia
Category:Fossils of Uzbekistan
Category:Fossil taxa described in 1984
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