Also known as Tsagaantsav

Where: Dornogov, Mongolia (44.9° N, 110.4° E: paleocoordinates 46.7° N, 112.3° E)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Tsagaantsav Formation, Valanginian to Valanginian (139.8 - 125.0 Ma)

• Graham et al. 2001 reported radiometric dates of 131 and 126 Ma from the Tsagantsab formation.

• group of beds-level stratigraphic resolution

Environment/lithology: lacustrine; lithified siliciclastic sediments

Size class: macrofossils

Preservation: adpression

Primary reference: A. G. Ponomarenko. 1992. Novye setchatokrylye (Insecta: Neuroptera) iz mezozoya Mongolii. Novye Taksony Iskopaemykh Bespozvonochnykh Mongolii, Sovmestnaya Rossiisko-Mongol'skaya Paleontologicheskaya Ekspeditsiya 41:101-111 [M. Clapham/M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 121472: authorized by Matthew Clapham, entered by Matthew Clapham on 04.12.2011

Creative Commons license: CC BY (attribution)