Where: Liaoning, China (40.8° N, 120.8° E: paleocoordinates 43.4° N, 122.8° E)
• coordinate based on nearby landmark
• small collection-level geographic resolution
When: Jianshangou Member (Yixian Formation), Late/Upper Barremian to Late/Upper Barremian (130.0 - 122.5 Ma)
• DNHM-D3078 is from the older Jianshangou Unit of the Yixian Formation, which has an age that has been radiometrically constrained between approximately 123 and 125 Ma
• bed-level stratigraphic resolution
Environment/lithology: lacustrine; shale and mudstone
Size class: macrofossils
Preservation: adpression, soft parts
Collection methods: quarrying
• DNHM, Dalian Natural History Museum, Dalian, China
Primary reference: C. Gao, L. M. Chiappe, F. ZHang, D. L. Pomeroy, C. Shen, A. Chinsamy, and M. O. Walsh. 2012. A subadult specimen of the Early Cretaceous bird Sapeornis chaoyangensis and a taxonomic reassessment of sapeornithids. Journal of Vertebrate Paleontology 32(5):1103-1112 [R. Benson/R. Benson]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 132934: authorized by Roger Benson, entered by Roger Benson on 29.08.2012, edited by Graeme Lloyd
Creative Commons license: CC BY (attribution)
Taxonomic list
| Aves | |
|
Sapeornis chaoyangensis Zhou and Zhang 2002 bird DNHM D3078, a nearly complete new subadult specimen preserving most of the wing feathers, from "Jianchang County, Huludao City"
| |
Gretcheniao sinensis n. gen. n. sp.
| |