Where: Yakutiya, Russian Federation (71.0° N, 102.0° E: paleocoordinates 24.8° S, 6.5° W)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Nochoroicyathus sunnaginicus other zone, 4 Member (Medvezhyn Formation), Tommotian (525.5 - 521.0 Ma)
• Kouchinsky & Bengston (2002) and Kouchinsky (2000) suggest Medvezhyn formation. Rowland et al. imply Krasnoporog formation.
• group of beds-level stratigraphic resolution
Environment/lithology: lithified, gray, green, yellow limestone
Size classes: mesofossils, microfossils
Preservation: cast, replaced with phosphate
Collection methods: chemical
• Full description in Rozonav et al. 1969 p. 46
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 96511: authorized by Pete Wagner, entered by Pete Wagner on 10.06.2010
Creative Commons license: CC BY (attribution)
Taxonomic list
| Hyolitha | |
|
Allatheca concinna Rozanov et al. 1969 | |
|
Turcutheca annae Syssoiev 1959 | |
| Helcionelloida | |
"Aldanella rozanovi" = Aldanella attleborensis
"Aldanella rozanovi" = Aldanella attleborensis Shaler and Foerste 1888 | |
|
Igorella ungulata Rozanov et al. 1969 | |
| Scyphozoa | |
"Kugdatheca voluta" = Anabarites voluta
"Kugdatheca voluta" = Anabarites voluta Rozanov et al. 1969 jellyfish | |
| Coeloscleritophora | |
|
Chancelloria sp. Walcott 1920 | |