Lamadong, Jianchang (Cretaceous of China)

Where: Liaoning, China (40.7° N, 119.7° E: paleocoordinates 43.8° N, 120.0° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Jiufotang Formation (Jehol Group), Aptian (125.0 - 113.0 Ma)

• "part of, or laterally equivalent to, the Lower Cretaaceous Yixian Formation, but more data are needed to confirm this" (Hu et al. 2011)

•Li et al. (2014) state that "Recent fieldwork confirmed the outcrops of fossil beds exposed in Lamadong Village mainly belong to the Jiufotang Formation (X. L. Wang, personal commun.)".

• bed-level stratigraphic resolution

Environment/lithology: lacustrine; sandstone and mudstone

• The Jiufotang Formation mainly comprises lacustrine

•sandstones, shales, mudstones, and tuffs interbedded within

•the sediments.

Size class: macrofossils

Preservation: adpression, soft parts

Collected by G. Chen

• collected by Mr. Guo Chen

Primary reference: D. Hu, L. Li, L. Hou and X. Xu. 2011. A new enantiornithine bird from the Lower Cretaceous of western Liaoning, China. Journal of Vertebrate Paleontology 31(1):154-161 [M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 105772: authorized by Matthew Carrano, entered by Matthew Carrano on 25.02.2011, edited by Roger Benson, Richard Butler and Graeme Lloyd

Creative Commons license: CC BY (attribution)

Taxonomic list

 Avetheropoda - Dromaeosauridae
Microraptor sp.1 Xu et al. 2000 coelurosaur
 Ornithothoraces -
Bellulia rectusunguis n. gen. n. sp.7
Bellulia rectusunguis n. gen. n. sp.7 Wang et al. 2016 bird
IVPP V17970
 Ornithothoraces - Schizoouridae
Mengciusornis dentatus n. gen. n. sp.5
Mengciusornis dentatus n. gen. n. sp.5 Wang et al. 2020 bird
IVPP V26275
 Enantiornithes - Bohaiornithidae
Sulcavis geeorum n. gen. n. sp.4, Bohaiornis guoi n. gen. n. sp.
Sulcavis geeorum n. gen. n. sp.4 O'Connor et al. 2013 bird
BMNH Ph-000805 (holotype slab skeleton) from 'near Lamadong Village'
Bohaiornis guoi n. gen. n. sp. Hu et al. 2011 bird
LPM B00167
 Enantiornithes - Pengornithidae
Chiappeavis magnapremaxillo n. gen. n. sp.3 O'Connor et al. 2016 bird
 Pterosauria -
Ikrandraco avatar n. gen. n. sp.6
Ikrandraco avatar n. gen. n. sp.6 Wang et al. 2014 pterosaur
IVPP V18199
 Pterosauria - Anurognathidae
Versperopterylus lamadongensis n. gen. n. sp.2 Lu et al. 2017 pterosaur