Where: Khabarovsk, Russian Federation (51.6° N, 133.3° E: paleocoordinates 53.8° N, 138.5° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Talynzhan Formation, Bathonian to Bathonian (168.3 - 157.3 Ma)

• According to Rozanov et al. (2005), the lower part of the Talynzhan suite contains an ammonite fauna including Umaltites era, Cobbanites, and Partschiceras subobtusiforme, which was often given an early Callovian age. However, revision of the endemic Boreal ammonites of Siberia suggests that the Umaltites era beds are actually upper Bajocian in age (Meledina, 2014). Rozanov et al. give an early Callovian to middle Oxfordian range for the Talynzhan suite, although Markevich & Bugdaeva (2008) assign it to the Upper Jurassic and place the Jurassic-Cretaceous boundary at the top.

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; lithified siliciclastic sediments

Size classes: macrofossils, mesofossils

Preservation: adpression

Collected by V.A. Krasilov in 1972; reposited in the PIN

Primary reference: L. N. Pritykina. 1985. Yurskie strekozy (Libellulida=Odonata) Sibiri i zapadnoy Mongolii. In A. P. Rasnitsyn (ed.), Yurskie Nasekomye Sibiri i Mongolii 120-138 [M. Clapham/M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 125487: authorized by Matthew Clapham, entered by Matthew Clapham on 11.03.2012

Creative Commons license: CC BY (attribution)