Dabeigou Formation
The Dabeigou Formation is a palaeontological formation located in Hebei, China. It dates from the mid Valanginian to Hauterivian age of the Cretaceous period, approximately 135 to 130 Ma.
Fossil content
Fossils include the confuciusornithiform bird Eoconfuciusornis. 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
;Amphibians
;Insects
- Amplicella beipiaoensis
- A. exquisita
- A. shcherbakovi
- Brachyopteryx weichangensis
- Chresmoda multinervis
- C. shihi
- Coptoclava longipoda
- Glypta qingshilaensis
- Hebeicoris xinboensis
- Jibeigomphus xinboensis
- Manlayamyia dabeigouensis
- Mesasimulium laihaigouense
- M. laiyangensis
- Mesolygaeus hebeiensis
- Mesoplecia xinboensis
- Pleciofungivora yangtianense
- Priscotendipes mirus
- Vitimoilus ovatus
- Notocupes lentus
- Amplicella sp.
- Ichneumonidae indet.
- Tanychorinae indet.