Where: Ukraine (49.6° N, 23.9° E: paleocoordinates 49.6° N, 23.9° E)

• coordinate based on political unit

• outcrop-level geographic resolution

When: Isakov Beds Formation, Ludfordian (425.6 - 423.0 Ma)

• formation-level stratigraphic resolution

Environment/lithology: marine; dolomite and dolomitic marl

Primary reference: O. I. Nikiforova. 1977. Podolia. In A. Martinsson (ed.), The Silurian-Devonian boundary (IUGS Publication, Series A, Number 5) 52-64 [M. Foote/M. Foote/P. Wagner]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 13872: authorized by Michael Foote, entered by Michael Foote on 30.04.2002

Creative Commons license: CC BY (attribution)