Where: Chita, Russian Federation (52.7° N, 118.8° E: paleocoordinates 57.0° N, 117.3° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Ustkarskaya Formation, Hauterivian (132.9 - 129.4 Ma)

Environment/lithology: lacustrine; tuffaceous mudstone

Size class: mesofossils

Preservation: mold/impression, adpression

Reposited in the PIN

Primary reference: A. G. Ponomarenko. 1990. Beetles, Scarabaeida, in Pozdne-Mezozoyskie Nasekomye Vostochnogo Zabaykal'ya. In A.P. Rasnitsyn (ed.), Akademiya Nauk SSSR, Trudy Paleontologicheskogo Instituta 239:39-82 [M. Clapham/M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 152177: authorized by Matthew Clapham, entered by Matthew Clapham on 10.11.2013

Creative Commons license: CC BY (attribution)