• Source: Paleobiota of the Yixian Formation

The Yixian Formation (simplified Chinese: 义县组; traditional Chinese: 義縣組; pinyin: Yìxiàn zǔ) is a geological formation in Jinzhou, Liaoning, People's Republic of China, that spans about 1.6 million years during the early Cretaceous period (Barremian-Aptian stage). It is known for its fossils, listed below.
The Yixian Formation is divided into the following subunits: (ages from Zhong et al., 2021 unless otherwise noted)

Upper Yixian (124.1 Ma) ("Jingangshan Bed") ("Dawangzhangzi Bed")
Upper Lava Unit
Jianshangou Unit (125.46 Ma)
Lower Lava Unit
Lujiatun Unit (125.76–125.68 Ma)




Sauropods






Ornithischians


The dinosaurs listed below were compiled in a survey by Xu and Norell in 2006, unless otherwise noted.




= Ankylosaurs

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= Ceratopsians

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= Ornithopods

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Theropods


The dinosaurs listed below were compiled in a survey by Xu and Norell in 2006, unless otherwise noted.




= Avialans

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= Compsognathids

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= Dromaeosaurs

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= Ornithomimosaurs

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= Oviraptorosaurs

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= Therizinosaurs

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= Troodontids

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= Tyrannosaurs and other theropods

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Pterosaurs


The pterosaurs listed below were compiled in a survey by Wang and Zhou in 2006, unless otherwise noted.




Misc. reptiles






= Choristoderans

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= Lizards

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= Turtles

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Mammals



The mammals listed below were compiled in a survey by Meng and colleagues in 2006, unless otherwise noted.




Amphibians






Fish






Invertebrate fauna of the Yixian Formation


The invertebrate species listed below follow a survey by Chen and colleagues published in 2005, unless otherwise noted.




= Arachnids

=
The arachnid species listed below follow a catalogue compiled by Dunlop, Penney and Jekel in 2010, unless otherwise noted.




= Beetles (Coleoptera)

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= Crustaceans

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= Dragonflies (Odonata)

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The dragonfly species listed below follow a review compiled by Zhang, Ren and Panf in 2008, unless otherwise noted.




= Flies (Diptera)

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= Wasps (Hymenoptera)

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= Other insects

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= Molluscs

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Flora of the Yixian Formation






= Conifers

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The coniferous trees and shrubs listed below were compiled in a survey by Wang and colleagues in 2006, unless otherwise noted.




= Ferns

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= Flowering plants

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= Ginkgos

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= Other plants

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References

Kata Kunci Pencarian:

• Paleobiota of the Yixian Formation
• Yixian Formation
• Jehol Biota
• Protopsephurus
• List of fossil sites
• Lagerstätte
• Huajiying Formation
• Insect paleobiota of Burmese amber
• 2021 in reptile paleontology