Utuk-Khaya Mountains, unit 2 (Cambrian of Russian Federation)

Also known as Reef 3791

Where: Tuva, Russian Federation (51.7° N, 92.2° E: paleocoordinates 6.1° S, 7.8° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Akdurug Formation, Botomian (516.0 - 512.9 Ma)

• 15-20 m thick, Sanashtykgol stage

• group of beds-level stratigraphic resolution

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

• small bioherms in a sandstone-conglomerate unit

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: taxonomic analysis

PaleoDB collection 81477: 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
 Archaeocyathida - Anthomorphidae
Anthomorpha sisovae
Anthomorpha sisovae archaeocyath sponge
 Monocyathida - Monocyathidae
Archaeolynthus sibiricus, Archaeolynthus unimurus
Archaeolynthus sibiricus archaeocyath sponge
Archaeolynthus unimurus archaeocyath sponge
 Ajacicyathida - Sajanocyathidae
Irinaecyathus sp.
Irinaecyathus sp. archaeocyath sponge