Huajiying Formation
The Huajiying Formation is a geological formation in Hebei, People's Republic of China. Known for its fossils including primitive birds, the age of the formation is uncertain. It may represent an early portion of the Jehol Biota, dating to somewhere in the early Cretaceous or late Jurassic periods. It may correlate with the early Cretaceous Dadianzi Formation and parts of the Yixian Formation, with an age range between 140 and 122 Ma ago. It contains the Qiaotou Member, sometimes treated as a distinct formation.
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Huajiying Formation
The Huajiying Formation is a geological formation in Hebei, People's Republic of China. Known for its fossils including primitive birds, the age of the formation is uncertain. It may represent an early portion of the Jehol Biota, dating to somewhere in the early Cretaceous or late Jurassic periods. It may correlate with the early Cretaceous Dadianzi Formation and parts of the Yixian Formation, with an age range between 140 and 122 Ma ago. It contains the Qiaotou Member, sometimes treated as a distinct formation.
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The Huajiying Formation is a g ...... eated as a distinct formation.
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Wikipage page ID
26,546,186
Wikipage revision ID
709,056,753
name
Huajiying Formation
overlies
region
subunits
Guohedao Member,
Nianzigou Member,
Qiaotou Member,
Sichakou Member
underlies
unitof
subject
hypernym
type
comment
The Huajiying Formation is a g ...... eated as a distinct formation.
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label
Huajiying Formation
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