Shanwang, Linqu County (CNU collection) (Miocene of China)

Where: Shandong, China (36.6° N, 118.7° E: paleocoordinates 36.5° N, 116.3° E)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Shanwang Formation, Burdigalian (20.4 - 16.0 Ma)

• Paleomagnetic and radiometric evidence correlates the Shanwang Formation to subchron 5En of Chron 5. The main part of the Shanwang Formation covers 18.524 Ma to 18.056 Ma, with the Shanwang Formation as a whole covering 18.5 ma to 17.5 Ma. Recent paleontological results show that the Shanwang Formation can be correlated with the European mammalian zone MN instead of the previous MN5.

• group of beds-level stratigraphic resolution

Environment/lithology: lacustrine - large; lithified, diatomaceous, tuffaceous mudstone

• Two minor volcanic faulted basins, the Linqu and Shanwang Basins, are present in the study area. The former lies near the county town of Linqu, and the latter in the Shanwang National Geopark, east of this town. The faulted basins are the result of intense Mesozoic-Cenozoic tectonic extension and rifting; the development of these basins was closely related in time with the nearby NE-SW and NW-SE trending faults in the Yishu Fault Zone.

Size classes: macrofossils, mesofossils

Preservation: adpression

Collection methods: Repository: Capital Normal University, Beijing

Primary reference: Y. J. Li, A. Nel, D. Ren, B. L. Zhang, and H. Pang. 2011. New discoveries of Neogene hawker dragonflies (Insecta, Odonata, Aeshnidae) from Shandong province in China. Zoosystema 33:577-590 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 160472: authorized by Matthew Clapham, entered by Matthew Clapham on 22.08.2014

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Insecta
 Odonata - Aeshnidae
Aeshna forficatum n. sp., Aeshna shanwangensis n. sp., Epiaeschna matutina
Aeshna forficatum n. sp. Li et al. 2011 hawker dragonfly
CNU-ODO-SS2011012
Aeshna shanwangensis n. sp. Li et al. 2011 hawker dragonfly
CNU-ODO-SS2011011
Epiaeschna matutina Zhang 1989 darner dragonfly
CNU-ODO-SS2011007, 008, 009, 010