Where: Russian Federation (67.2° N, 153.0° E: paleocoordinates 62.0° N, 3.7° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Irbychan Formation, Asselian (298.9 - 295.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified, tuffaceous sandstone

Size class: macrofossils

Collected by M.I. Terekhov in 1960

Primary reference: V. M. Zavodowsky. 1968. Spiriferacea. Novye Vidy Drevnikh Rasteniy i Bespozvonochnykh SSSR 2:149-160 [M. Clapham/M. Clapham/M. Clapham] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 94867: authorized by Matthew Clapham, entered by Matthew Clapham on 31.03.2010

Creative Commons license: CC BY-NC-ND (attribution-noncommercial-no derivatives)