Bayan Kol River, Sayan, Upper Bayan Kol Formation (Cambrian of Russian Federation)

Also known as Reef 3790

Where: Tuva, Russian Federation (51.6° N, 93.6° E: paleocoordinates 5.6° S, 7.1° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Upper Member (Bayan Kol Formation), Botomian (516.0 - 512.9 Ma)

• Sanashtykgol stage

• group of beds-level stratigraphic resolution

Environment/lithology: reef, buildup or bioherm; lithified limestone

• sandstone-gravelstone-tuffconglomerate unit with restricted reefal limestones (small bioherms, kalyptra)

Size class: macrofossils

Collection methods: peel or thin section,

Primary reference: D. V. Osadchaya, L. N. Kashina, I. T. Zhuravleva and N. P. Borodina. 1979. Stratigrafiya i arkheotsiaty nizhnego kembriya Altaye-Sayanskoy skladchatoy oblasti [Lower Cambrian stratigraphy and archaeocyatha of the Altay-Sayan fold belt]. Trudy Instituta Geologii i Geofiziki, Sibirskoye Otdeleniye 380:1-215 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 81475: authorized by Wolfgang Kiessling, entered by Uta Merkel on 26.06.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Archaeocyatha
 Ajacicyathida - Sajanocyathidae
Irinaecyathus grandiperforatus
Irinaecyathus grandiperforatus archaeocyath sponge
 Capsulocyathida - Clathricoscinidae
Clathricoscinus vassilievi
Clathricoscinus vassilievi archaeocyath sponge