Where: Buryatia, Russian Federation (53.3° N, 112.1° E: paleocoordinates 56.0° N, 108.5° E)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Zaza Formation, Aptian (125.5 - 112.6 Ma)
• C. longipoda, E. trisetalis and Lycoptera all occur in the Zaza Formation indicating that this formation could be correlated with the upper Yixian Formation and the lower Jiufotang Formation in western Liaoning, which have a duration of 122.5-120 Ma. So it is possible to assign the Zaza Formation to an Aptian age. Also correlated with Barremian-Aptian based on plants and pollen.
• group of beds-level stratigraphic resolution
Environment/lithology: lacustrine - large; lithified marl
Size class: macrofossils
Preservation: mold/impression
Reposited in the PIN
Primary reference: A. P. Rasnitsyn. 1975. Hymenoptera Apocrita of Mesozoic. Transactions of the Palaeontological Institute Academy of Sciences of the USSR 147:1-134 [M. Clapham/J. Karr] more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 105969: authorized by Matthew Clapham, entered by Matthew Clapham on 28.02.2011, edited by Lindy Edwards and Jered Karr
Creative Commons license: CC BY (attribution)