Lena River, Churan, biohermal facies (Cambrian of Russian Federation)

Also known as Reef 1830

Where: Yakutiya, Russian Federation (60.8° N, 125.0° E: paleocoordinates 13.1° S, 14.0° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Pestrotsvet Formation, Tommotian (525.5 - 521.0 Ma)

• Dokidocyathus regularis zone, Lapworthella tortuosa

• group of beds-level stratigraphic resolution

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

• Discrete mounds, up to 3 m long and 20 cm high, in some cases bioherms up to 8 m long and 1.5 m high. Two types: archaeocyath-rich and Renalcis-rich.

Size class: macrofossils

Primary reference: P. D. Kruse, A. Y. Zhuravlev, and N. P. James. 1995. Primordial metazoan-calcimicrobial reefs: Tommotian (Early Cambrian) of the Siberian Platform. Palaios 10:291-321 [W. Kiessling/B. Bookhagen/M. Uhen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 80802: authorized by Wolfgang Kiessling, entered by Uta Merkel on 09.05.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Anthozoa
  -
Cysticyathus tunicatus
Archaeocyatha
 Archaeocyathida - Sakhacyathidae
Sakhacyathus subartus
Sakhacyathus subartus archaeocyath sponge
 Archaeocyathida - Loculicyathidae
Okulitchicyathus discoformis, Cambrocyathellus tschuranicus
Okulitchicyathus discoformis archaeocyath sponge
Cambrocyathellus tschuranicus archaeocyath sponge
 Archaeocyathida - Dictyocyathidae
Dictyocyathus translucidus
Dictyocyathus translucidus archaeocyath sponge
 Monocyathida - Monocyathidae
Archaeolynthus polaris
Archaeolynthus polaris archaeocyath sponge
 Ajacicyathida - Asterocyathidae
Erismacoscinus rojkovi
Erismacoscinus rojkovi archaeocyath sponge
 Ajacicyathida - Dokidocyathidae
Dokidocyathus regularis
Dokidocyathus regularis archaeocyath sponge
 Ajacicyathida - Ajacicyathidae
Rotundocyathus spinosus, Nochoroicyathus vulgaris, Nochoroicyathus tkatschenkoi, Nochoroicyathus mirabilis, Nochoroicyathus prosper
Rotundocyathus spinosus archaeocyath sponge
Nochoroicyathus vulgaris archaeocyath sponge
Nochoroicyathus tkatschenkoi archaeocyath sponge
Nochoroicyathus mirabilis archaeocyath sponge
Nochoroicyathus prosper archaeocyath sponge
Hexactinellida
 Reticulosa - Protospongiidae
Protospongiidae indet.
Protospongiidae indet. Hinde 1887 glass sponge
Renalcis
  - Chabakoviacea
Renalcis jacuticus