Dalazi, Zhixin district, Yanji County (Cretaceous of China)

Where: Jilin, China (42.7° N, 129.6° E: paleocoordinates 47.4° N, 129.7° E)

• coordinate estimated from map

• outcrop-level geographic resolution

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

• Aptian age based on angiosperms (Tao and Zhang, 1990). Other papers have assigned an Albian age based on pollen and plants (Yu and Miao, 1983; Zhang, 1986).

• group of beds-level stratigraphic resolution

Environment/lithology: lacustrine - large; lithified, gray, green sandstone

• Dalazi basin is rift basin controlled by NNE rift structure (Tao and Zhang, 1990).

Size class: macrofossils

Preservation: adpression

Reposited in the NIGPAS

Primary reference: Q. B. Lin. 1992. Insecta, II: Jurassic-Early Cretaceous insects. Paleontological Atlas of Jilin Province 417-424 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 172391: authorized by Matthew Clapham, entered by Matthew Clapham on 06.08.2015

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Insecta
 Blattaria - Caloblattinidae
Rhipidoblattina decoris
Rhipidoblattina decoris Lin 1978 cockroach
NIGP 94875
 Coleoptera - Hydrophilidae
Orphnospercheus lonjingensis n. gen. n. sp.
Orphnospercheus lonjingensis n. gen. n. sp. Lin 1992 water scavenger beetle
NIGP 94884
 Coleoptera - Coptoclavidae
Coptoclava longipoda
Coptoclava longipoda Ping 1928 beetle
NIGP 94885, 94886
 Diptera - Chaoboridae
Chironomaptera gregaria
Chironomaptera gregaria Grabau 1923 phantom midge
NIGP 94887