Where: Russian Federation (73.0° N, 119.8° E: paleocoordinates 82.0° N, 10.5° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Tumul Formation, Alaunian (215.6 - 212.0 Ma)

• basal part of the formation, Middle Norian; O. ussuriensis Zone

• group of beds-level stratigraphic resolution

Environment/lithology: slope; lithified sandstone and lithified conglomerate

Size class: macrofossils

Primary reference: A. M. Kazakov and N. I. Kurushin. 1992. Stratigraphy of Norian and Rhaetian deposits in the northern Middle Siberia. Russian Geology and Geophysics 33(6):1-8 [W. Kiessling/U. Merkel] more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 69407: authorized by Wolfgang Kiessling, entered by Uta Merkel on 26.02.2007