The Dabeigou Formation is a palaeontological formation located in

Hebei Hebei or , (; alternately Hopeh) is a northern province of China. Hebei is China's sixth most populous province, with over 75 million people. Shijiazhuang is the capital city. The province is 96% Han Chinese, 3% Manchu, 0.8% Hui, an ...

China China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and ...

.Dabeigou Formation
at

Fossilworks Fossilworks is a portal which provides query, download, and analysis tools to facilitate access to the Paleobiology Database The Paleobiology Database is an online resource for information on the distribution and classification of fossil animals ...

.org It dates from the mid

Valanginian In the geologic timescale, the Valanginian is an age or stage of the Early or Lower Cretaceous. It spans between 139.8 ± 3.0 Ma and 132.9 ± 2.0 Ma (million years ago). The Valanginian Stage succeeds the Berriasian Stage of the Lower Cretaceou ...

Hauterivian The Hauterivian is, in the geologic timescale, an age in the Early Cretaceous Epoch or a stage in the Lower Cretaceous Series. It spans the time between 132.9 ± 2 Ma and 129.4 ± 1.5 Ma (million years ago). The Hauterivian is preceded by the Va ...

age Age or AGE may refer to: Time and its effects * Age, the amount of time someone or something has been alive or has existed ** East Asian age reckoning, an Asian system of marking age starting at 1 * Ageing or aging, the process of becoming older ...

of the

Cretaceous The Cretaceous ( ) is a geological period that lasted from about 145 to 66 million years ago (Mya). It is the third and final period of the Mesozoic Era, as well as the longest. At around 79 million years, it is the longest geological period of th ...

period, approximately 135 to 130 Ma.Qin et al., 2018

Fossil content

Fossils include the

confuciusornithiform Confuciusornithidae is an extinct family of pygostylian avialans known from the Early Cretaceous, found in northern China. They are commonly placed as a sister group to Ornithothoraces, a group that contains all extant birds along with their close ...

bird ''

Eoconfuciusornis ''Eoconfuciusornis'' a genus of extinct avialan that lived 131 Ma ago, in the Early Cretaceous of China. The type species of ''Eoconfuciusornis'', ''Eoconfuciusornis zhengi'', was named and described by Zhang Fucheng, Zhou Zhonghe and Michae ...

''.Zhang et al., 2008 As of 2016 this is the oldest bird with a toothless beak known, but it belongs to a very ancestral avian lineage not closely related to living birds. ;Birds * '' Jinguofortis perplexus''Wang & Stidham, 2018 ;Amphibians * '' Regalerpeton weichangensis''Rong, 2018 ;Insects * '' Amplicella beipiaoensis''Kopylov & Zhang, 2015 * '' A. exquisita'' * '' A. shcherbakovi'' * '' Brachyopteryx weichangensis''Hong, 1984 * '' Chresmoda multinervis''Zhang et al., 2009 * '' C. shihi'' * '' Coptoclava longipoda'' * '' Glypta qingshilaensis''Ren, 1995 * '' Hebeicoris xinboensis'' * '' Jibeigomphus xinboensis'' * '' Manlayamyia dabeigouensis''Zhang, 1986 * '' Mesasimulium laihaigouense'' * '' M. laiyangensis'' * '' Mesolygaeus hebeiensis'' * '' Mesoplecia xinboensis'' * '' Pleciofungivora yangtianense'' * '' Priscotendipes mirus'' * '' Vitimoilus ovatus'' * '' Zygadenia lenta'' * '' Amplicella sp.'' * Ichneumonidae indet. * Tanychorinae indet.

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Fossil content

See also

References

Bibliography

Further reading