Lena River, Tuora-Sis Mountains, section 3 bioherm (Cambrian of Russian Federation)

Also known as Reef 1833

Where: Yakutiya, Russian Federation (71.5° N, 127.4° E: paleocoordinates 23.7° S, 15.3° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Lapworthella bella + Mariatheca tumefacta small shelly zone, Tyuser Formation, Tommotian (525.5 - 521.0 Ma)

• upper unit 5 and unit 6, Lapworthella bella-Mariatheca tumefacta zones, upper Tommotian

• group of beds-level stratigraphic resolution

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

• archaeocyath-microbial bioherms

Size class: macrofossils

Collection methods: peel or thin section,

Primary reference: B. S. Sokolov, L. N. Repina, N. P. Lazarenko, N. P. Meshkova, V. I. Korshunov, N. I. Nikiforov, and N. A. Aksarina. 1974. Biostratigrafiya i fauna nizhnego kembriya Kharaulakha (khr. Tuora-Sis) [Lower Cambrian biostratigraphy and fauna of Kharaulakh, Tuora-Sis Ridge]. Trudy Instituta Geologii i Geofiziki, Sibirskoye Otdeleniye 235:5-299 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 80951: authorized by Wolfgang Kiessling, entered by Uta Merkel on 22.05.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

• This list almost certainly lumps taxa from a wide chronostratigraphic range: it should be broken down and re-entered.
Show authors, comments, and common names
Hyolitha
 Orthothecida - Allathecidae
Allathecidae indet.
Allathecidae indet. Rozanov et al. 1969
 Hyolithida - Sulcavitidae
Burithes sp., Tuojdachithes sp.
Burithes sp. Rozanov et al. 1969
Tuojdachithes sp. Rozanov et al. 1969
Brachiopoda
 Tommotiida - Tommotiidae
"Tommotia kozlowskii" = Camenella kozlowskii
"Tommotia kozlowskii" = Camenella kozlowskii Rozanov and Missarzhevsky 1966
 Tommotiida - Lapworthellidae
Lapworthella bella, Lapworthella marginata
Mobergella
  - Mobergellidae
Mobergella braastadi
Archaeocyatha
 Capsulocyathida - Cryptoporocyathidae
Cryptoporocyathus melnikovi
Cryptoporocyathus melnikovi archaeocyath sponge
 Capsulocyathida - Coscinocyathidae
Coscinocyathus sp., Coscinocyathus rojkovi
Coscinocyathus sp. Bornemann 1884 archaeocyath sponge
Coscinocyathus rojkovi archaeocyath sponge
 Ajacicyathida - Dokidocyathidae
Dokidocyathus sp.
Dokidocyathus sp. Taylor 1910 archaeocyath sponge
 Ajacicyathida - Lenocyathidae
Lenocyathus lenaicus
Lenocyathus lenaicus archaeocyath sponge
 Ajacicyathida - Ajacicyathidae
Nochoroicyathus grandis, Ajacicyathus cf. gigantoporus, Ajacicyathus sp.
Nochoroicyathus grandis archaeocyath sponge
Ajacicyathus cf. gigantoporus archaeocyath sponge
Ajacicyathus sp. Bedford and Bedford 1939 archaeocyath sponge
 Hyolithelminthida - Hyolithellidae
Hyolithellus acuticostatus