Also known as Kotujkan River, leading to Kotuj River and above Bol’shaya river

Where: Yakutiya, Russian Federation (70.6° N, 103.5° E: paleocoordinates 24.3° S, 6.9° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Nochoroicyathus sunnaginicus zone, 14 Member (Medvezhyn Formation), Tommotian (525.5 - 521.0 Ma)

• Kouchinsky & Bengston (2002) suggest Medvezhyn formation. Rowland et al. imply Krasnoporog formation.

• group of beds-level stratigraphic resolution

Environment/lithology: lithified, glauconitic, gray, green, red limestone

Size class: microfossils

Collection methods: Full description in Vostokova 1962, Rozonav et al. 1968 p. 45

Primary reference: A. V. Kouchinsky. 1999. Shell microstructures of the early Cambrian Anabarella and Watsonella as new evidence of the origin of the Rostroconchia. Lethaia 32(2):173-180 [P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 96456: authorized by Pete Wagner, entered by Pete Wagner on 08.06.2010

Creative Commons license: CC BY (attribution)