Where: Buryatia, Russian Federation (52.0° N, 108.0° E: paleocoordinates 56.5° N, 108.3° E)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Ichetuy Formation, Oxfordian (163.5 - 157.3 Ma)
• Insect workers often assign a late Early Jurassic-early Middle Jurassic (or Toarcian-Aalenian) age but radiometric dating of Ichituy Fm volcanics gives ages of 159-156 Ma.
• group of beds-level stratigraphic resolution
Environment/lithology: lacustrine - small; lithified siliciclastic sediments
Size classes: macrofossils, mesofossils
Preservation: mold/impression
Collected by G.A. Dmitriev in 1960; reposited in the PIN
Primary reference: N. D. Sinitshenkova. 1985. Jurskie podenki (Ephemerida-Ephemeroptera) yuzhnoy Sibiri i zapadnoy Mongolii. In A. P. Rasnitsyn (ed.), Jurskie Nasekomye Sibiri i Mongolii 11-23 [M. Clapham/M. Clapham/M. Clapham]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 123196: authorized by Matthew Clapham, entered by Matthew Clapham on 13.01.2012
Creative Commons license: CC BY (attribution)
Taxonomic list
Insecta | |
"Epeoromimus beybienkoi" = Mesobaetis sibirica
"Epeoromimus beybienkoi" = Mesobaetis sibirica Brauer et al. 1889 mayfly PIN 1808/1-7, 11-14; Only PIN 1808/4-7 listed as M. sibirica by Sinitshenkova, 1986
| |
Kaptsheranga porrecta n. gen. n. sp.
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