SyF3, Jiuyigou, Shenyu, Huating County (Cretaceous of China)

Where: Gansu, China (35.1° N, 106.8° E: paleocoordinates 36.1° N, 109.8° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Huachi-Huanhe Formation (Zhidan Group), Hauterivian (132.9 - 129.4 Ma)

• Magnetostratigraphy suggests age from 133.94-129.73 Ma

• group of beds-level stratigraphic resolution

Environment/lithology: fluvial-lacustrine; lithified, gray, green, calcareous siltstone

• Gray-green, thin-bedded calcareous siltstone

Size class: macrofossils

Preservation: adpression

Primary reference: Y. C. Hong. 1995. Fossil insects of the northern Ordos Basin. Acta Geologica Gansu 4(2):1-9 [M. Clapham/M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 140463: authorized by Matthew Clapham, entered by Matthew Clapham on 10.03.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

 Diptera - Chironomidae
Huabeitendipes wuqiensis Hong 1995 non biting midge
82Sj10, 18, 25, 30
 Diptera - Chaoboridae
Chironomaptera "sp. 1" Ping 1928 phantom midge
82Sj18, 24, 50