Gaositai railway station, Chengde City (Cretaceous of China)

Where: Hebei, China (41.2° N, 118.0° E: paleocoordinates 43.6° N, 119.5° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Yixian Formation, Early/Lower Aptian (125.5 - 122.5 Ma)

• U-Pb dating from the Sihetun area indicates that the Yixian Formation ranges from 124.9 ± 1.7 Ma to 122.8 ± 1.6 Ma (Yang et al., 2007). Chang et al. (2017) obtained Ar/Ar ages of 125.8 ± 1.0 Ma and 126.0 ± 0.8 Ma from the Lujiatun Unit, the lowest part of the Yixian Formation, below the lacustrine shales. It is not clear if the formation is the same age elsewhere, but for now the same age is assigned.

• group of beds-level stratigraphic resolution

Environment/lithology: lacustrine - large; lithified mudstone

Size class: mesofossils

Preservation: mold/impression

Primary reference: D. Ren. 1995. Insecta. In D. Ren, L.W. Lu, Z.G. Guo, S.A. Ji (eds.), Faunae and stratigraphy of Jurassic-Cretaceous in Beijing and the adjacent areas 47-121 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 107001: authorized by Matthew Clapham, entered by Matthew Clapham on 31.03.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Insecta
 Hemiptera - Oviparosiphidae
Sinoviparosiphum lini n. gen. n. sp.
Sinoviparosiphum lini n. gen. n. sp. Ren 1995 aphid
 Hemiptera - Palaeontinidae
Yanocossus guoi n. gen. n. sp.
Yanocossus guoi n. gen. n. sp. Ren 1995 true bug
 Dicondylia - Blattulidae
"Blattula extenuata n. sp." = Elisama extenuata, Blattula delicatula n. sp., Blattula platypa n. sp.
"Blattula extenuata n. sp." = Elisama extenuata Ren 1995 winged insect
Blattula delicatula n. sp. Ren 1995 winged insect
Blattula platypa n. sp. Ren 1995 winged insect
 Orthoptera - Prophalangopsidae
"Habrohagla curtivenata n. gen. n. sp." = Parahagla sibirica
"Habrohagla curtivenata n. gen. n. sp." = Parahagla sibirica Sharov 1968 hump-winged cricket
 Orthoptera - Haglidae
Sinohagla pleioneura n. sp. Ren 1995 hump-winged cricket
 Hymenoptera - Angarosphecidae
Baissodes grabaui n. sp. Ren 1995 apoid wasp
 Hymenoptera - Roproniidae
Jeholoropronia pingi n. gen. n. sp.
Jeholoropronia pingi n. gen. n. sp. Ren 1995 wasp
 Hymenoptera - Proctotrupidae
Chengdeserphus petiolatus n. gen. n. sp. Ren 1995 wasp
 Hymenoptera - Baissidae
Manlaya flexuosa n. sp. Ren 1995 wasp
 Hymenoptera - Megalyridae
Scolichneumon rectivenius n. gen. n. sp. Ren 1995 wasp
Yanocleistogaster canaliculata n. gen. n. sp. Ren 1995 wasp
Mesaulacinus rasnitsyni n. sp. Ren 1995 wasp
 Hymenoptera - Bethylonymidae
Allogaster ovata n. gen. n. sp.
Allogaster ovata n. gen. n. sp. Ren 1995 wasp
 Hymenoptera - Megalodontesidae
Sinosepulca gigathoracalis n. gen. n. sp. Ren 1995 sawfly
 Hymenoptera - Xyelidae
"Liadoxyela chengdeensis n. sp." = Angaridyela chengdeensis
"Liadoxyela chengdeensis n. sp." = Angaridyela chengdeensis Ren 1995 sawfly
 Mecoptera - Permochoristidae
"Yanorthophlebia hebeiensis n. gen. n. sp." = Liassochorista hebeiensis
"Yanorthophlebia hebeiensis n. gen. n. sp." = Liassochorista hebeiensis Ren 1995 scorpionfly
 Diptera - Empididae
Basilorhagio venustus n. gen. n. sp.
Basilorhagio venustus n. gen. n. sp. Ren 1995 dagger fly
 Diptera - Pleciofungivoridae
Opiparifungivora aliena n. gen. n. sp.
Opiparifungivora aliena n. gen. n. sp. Ren 1995 fly
 Diptera - Bibionidae
Lichnoplecia kovalevi n. gen. n. sp.
Lichnoplecia kovalevi n. gen. n. sp. Ren 1995 march fly
 Diptera - Mycetophilidae
Atalosciophila yanensis n. gen. n. sp.
Atalosciophila yanensis n. gen. n. sp. Ren 1995 fungus gnat
 Trichoptera - Vitimotauliidae
? Multimodus elongatus n. sp. Ren 1995 caddisfly
Multimodus dissitus n. sp. Ren 1995 caddisfly
Multimodus stigmaeus n. sp. Ren 1995 caddisfly
 Raphidioptera - Mesoraphidiidae
Yanoraphidia gaoi n. gen. n. sp.
Yanoraphidia gaoi n. gen. n. sp. Ren 1995 snakefly
 Neuroptera -
Yanosmylus rarivenatus n. gen. n. sp.
Yanosmylus rarivenatus n. gen. n. sp. Ren 1995 lacewing