Where: Chita, Russian Federation (51.9° N, 118.9° E: paleocoordinates 55.9° N, 117.2° E)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Turga Formation, Early/Lower Aptian (121.4 - 122.5 Ma)
• Correlative with the Zaza Formation and most likely with upper Yixian or lower Jiufotang Formation, therefore an Aptian (probably early Aptian) age.
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 152173: authorized by Matthew Clapham, entered by Matthew Clapham on 10.11.2013
Creative Commons license: CC BY (attribution)
Taxonomic list
Insecta | |
"Mesosperchus tarsalis" = Helophorus (Mesosperchus) tarsalis
"Mesosperchus tarsalis" = Helophorus (Mesosperchus) tarsalis Ponomarenko 1977 water scavenger beetle PIN 3796/25, 27
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