Where: Khabarovsk, Russian Federation (59.4° N, 140.3° E: paleocoordinates 65.7° N, 126.0° E)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Amka Formation, Late/Upper Coniacian (89.3 - 85.8 Ma)
• The Emanra Formation and its flora were traditionally assigned an Albian age, but the unit is now known as the Amka Formation and is of Late Coniacian age on the basis of U/Pb dating (86.1 ± 0.3 Ma), according to Akinin et al. (2019).
• bed-level stratigraphic resolution
Environment/lithology: lacustrine; lithified, tuffaceous mudstone
Size classes: macrofossils, mesofossils
Preservation: adpression
Collected in 1985; reposited in the PIN
Primary reference: V. V. Gromov, V. Y. Dmitriev, V. V. Zherikhin, E. L. Lebedev, A. G. Ponomarenko, A. P. Rasnitsyn, and I. D. Sukacheva. 1993. Melovye entomofauny basseyna r. Ul'i (zapadnoe Priokhot'e). In A. G. Ponomarenko (ed.), Mezozoyskie Nasekomye i Ostrakody Azii 5-60 [M. Clapham/M. Clapham/M. Clapham]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 138044: authorized by Matthew Clapham, entered by Matthew Clapham on 04.01.2013, edited by Jered Karr
Creative Commons license: CC BY (attribution)
Taxonomic list
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