Where: Liaoning, China (41.5° N, 121.2° E: paleocoordinates 44.3° N, 123.1° E)
• coordinate based on nearby landmark
• small collection-level geographic resolution
When: Lujiatun Member (Yixian Formation), Late/Upper Barremian to Late/Upper Barremian (130.0 - 122.5 Ma)
• radiometric dating of main fossiliferous tuff (40Ar/39AR) = 123.2 ± 1.0 Ma
• bed-level stratigraphic resolution
Environment/lithology: terrestrial; pebbly, volcaniclastic, brown, red, silty, sandy mudstone
•SRF also comprise the largest clasts and are up to 5 mm in maximum diameter. Silt to sand-sized grains (0.05– 1.00 mm) of euhedral to subangular, fresh to corroded quartz, plagioclase, potassium feldspar and biotite are also present throughout the matrix."
Size class: macrofossils
Reposited in the IVPP
Collection methods: surface (in situ), mechanical,
Primary reference: Q. Zhao, P. M. Barrett, and D. A. Eberth. 2007. Social behaviour and mass mortality in the basal ceratopsian dinosaur Psittacosaurus (Early Cretaceous, People's Republic of China). Palaeontology 50(5):1023-1029 [M. Carrano/M. Carrano]more details
Purpose of describing collection: paleoecologic analysis
PaleoDB collection 75472: authorized by Matthew Carrano, entered by Matthew Carrano on 10.10.2007
Creative Commons license: CC BY (attribution)
Taxonomic list
Reptilia | |
|