Huangbanjigou, Chaomidian Village, CNU 2004 collection (Cretaceous of China)

Where: Liaoning, China (41.6° N, 120.8° E: paleocoordinates 44.5° N, 122.3° E)

• coordinate estimated from map

• outcrop-level geographic resolution

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

• U-Pb dating suggests that the Huangbanjigou section 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.

• group of beds-level stratigraphic resolution

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

Size classes: macrofossils, mesofossils

Preservation: adpression

Collection methods: Repository: Capital Normal University, Beijing

Primary reference: B. L. Zhang, D. Ren, C. Q. Zhou and H. Pang. 2006. New genus and species of fossil dragonflies (Insecta: Odonata) from the Yixian Formation of northeastern China. Acta Geologica Sinica 80:327-335 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 111722: authorized by Matthew Clapham, entered by Matthew Clapham on 28.06.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Insecta
 Coleoptera - Cupedidae
Amblomma rudis n. sp.2, Amblomma psilata n. gen. n. sp.2, Amblomma epicharis n. sp.2, Amblomma stabilis n. sp.2
Amblomma rudis n. sp.2 Tan et al. 2005 reticulated beetle
CNU LB2004004
Amblomma psilata n. gen. n. sp.2 Tan et al. 2005 reticulated beetle
CNU LB2004001
Amblomma epicharis n. sp.2 Tan et al. 2005 reticulated beetle
CNU LB2004002
Amblomma stabilis n. sp.2 Tan et al. 2005 reticulated beetle
CNU LB2004003
 Mecoptera - Eomeropidae
Typhothauma yixianensis n. gen. n. sp.1
Typhothauma yixianensis n. gen. n. sp.1 Ren and Shih 2005 scorpionfly
 Odonata -
Telmaeshna paradoxica n. gen. n. sp.3
Telmaeshna paradoxica n. gen. n. sp.3 Zhang et al. 2008 true dragonfly
CNU-OD-LB2004001 ("near Chaomidian village")
 Odonata - Araripelibellulidae
Sopholibellula eleganta n. gen. n. sp. Zhang et al. 2006 true dragonfly
Sopholibellula amoena n. sp. Zhang et al. 2006 true dragonfly