Where: Yakutiya, Russian Federation (71.0° N, 102.0° E)

• Paleocoordinates: 10.1° S, 71.5° W (Wright 2013)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Nochoroicyathus sunnaginicus zone, Koriliam 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, gray, green, red limestone

Size class: microfossils

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

Primary reference: A. Y. Rozanov, V. V. Missarzhevsky, N. A. Volkova, L. G. Voronova, I. N. Krylov, B.M. Keller, I. K. Korolyuk, K. Lendzion, R. Mikhnyar, N. G. Pykhova, and A. D. Sidorov. 1969. Tommotskiu jarus i problema nizhney granisty kembriya [The Tommotian Stage and the Cambrian lower Boundary problem]. Trudy Geoligske Institut Leningrad 206:1-379 [P. Wagner/P. Wagner/P. Novack-Gottshall]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 49687: authorized by Pete Wagner, entered by Pete Wagner on 23.04.2005

Creative Commons license: CC0 (CC0)