84GHYD, Huangyadi, Muyudianxiang, Laiyang City (Cretaceous of China)

Where: Shandong, China (37.1° N, 120.8° E: paleocoordinates 40.5° N, 122.2° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Laiyang Formation, Aptian (125.0 - 113.0 Ma)

Environment/lithology: lacustrine - large; lithified, gray, yellow siltstone

• Large (several hundred km2) lake in the Laiyang basin. In addition to the abundant entomofauna, plant fossil fragments, fish and a single bird feather also have been found. Water plants were apparently rare, and at the centre of the lake I have found no plant or animal fossils.
• The Third Member of the Laiyang Formation consists of 250-705 m of calcareous sandstone, siltstone and fine-granted sandstone intercalated with thin, paper-like, insect-rich shales.

Size classes: macrofossils, mesofossils

Preservation: mold/impression

Collected by Shandong Geological Bureau in 1983-1986

• Repository: Beijing Natural History Museum

Primary reference: Y. C. Hong and W. L. Wang. 1990. Fossil insects from the Laiyang Basin, Shandong Province. Stratigraphy and Palaeontology of Laiyang Basin, Shandong Province 44-189 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 154888: authorized by Matthew Clapham, entered by Matthew Clapham on 17.03.2014

Creative Commons license: CC BY (attribution)

Taxonomic list

Insecta
 Hemiptera - Notonectidae
"Clypostemma xyphiale" = Notonecta xyphiale
"Clypostemma xyphiale" = Notonecta xyphiale Popov 1964 true bug
 Hemiptera - Archegocimicidae
Schizopteryx shandongensis Hong 1984 shore bug
 Hemiptera - Saldidae
Mesolygaeus laiyangensis Ping 1928 shore bug
 Dicondylia -
Hymenoptera indet. Linnaeus 1758 winged insect
 Coleoptera - Coptoclavidae
Coptoclava longipoda Ping 1928 beetle
 Coleoptera -
"Forticupes laiyangensis n. gen. n. sp." = Notocupes laiyangensis
"Forticupes laiyangensis n. gen. n. sp." = Notocupes laiyangensis Hong and Wang 1990 beetle
84SHL289