Also known as Reef 3775

Where: Khakasiya, Russian Federation (54.0° N, 90.8° E: paleocoordinates 8.5° S, 7.4° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Usa Formation, Botomian (516.0 - 513.0 Ma)

• sample 5104:5,7, 5105:1, 56 m thick, Sanashtykgol stage

• group of beds-level stratigraphic resolution

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

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 81316: authorized by Wolfgang Kiessling, entered by Uta Merkel on 19.06.2008