Where: Yunnan, China (21.2° N, 101.7° E: paleocoordinates 16.1° N, 95.7° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Ypresian (55.8 - 48.6 Ma)

• The true Mengyejing Formation is an early Late Cretaceous stratum. However, the ‘Mengyejing Formation’ near Shangyong Village may belong to an undefined stratum.An early Eocene age (Ypresian) is more convincing on the basis of the study of the

•conchostracan Paraleptestheria menglaensis (Chen and Shen,

•1980; Shen et al., 2006).

Environment/lithology: terrestrial; lithified, yellow mudstone

Size classes: macrofossils, mesofossils

Preservation: mold/impression

Collected in 1977

Primary reference: Q. B. Lin, J. F. Petrulevicius, D. Y. Huang, A. Nel, and M. S. Engel. 2010. First fossil Calopterygoidea (Odonata: Zygoptera) from Southeastern Asia: A new genus and species from the Paleogene of China. Geobios 43:349-353 [M. Clapham/J. Karr] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 113892: authorized by Matthew Clapham, entered by Jered Karr on 07.08.2011

Creative Commons license: CC BY-NC-ND (attribution-noncommercial-no derivatives)