Kotuykan River, M421/94 (Cambrian of Russian Federation)

Where: Krasnoyarsk, Russian Federation (70.5° N, 103.4° E: paleocoordinates 24.2° S, 6.8° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

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

• lower Medvezhin Formation

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified limestone

Size class: macrofossils

Primary reference: V. V. Missarzhevsky. 1989. Oldest skeletal fossils of late Precambrian and early Cambrian age: a review of recent work. Trudy Geologicheskogo Instituta AN SSSR 443:1-231 [P. Wagner/P. Wagner]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 99484: authorized by Wolfgang Kiessling, entered by Uta Merkel on 12.11.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Orthothecimorpha
 Circothecida -
Ladatheca dorsocava
Hyolitha
 Orthothecida -
Kotuyitheca curta
Kotuyitheca curta Missarzhevsky 1974
 Orthothecida - Circothecidae
Crossbitheca sp.
Crossbitheca sp. Missarzhevsky 1974
Purella antiqua
  - Maikhanellidae
Purella antiqua
Purella antiqua Kiær 1916
Purella cristata
  - Maikhanellidae
Purella cristata
Purella cristata Missarzhevsky 1974
Aculifera
  - Halkieriidae
Halkieria sp.
Halkieria sp. Poulsen 1967
Helcionelloida
 Helcionellida - Helcionellidae
Securiconus simus, Securiconus costulatus, Bemella jacutica
Securiconus simus Luo et al. 1982
Securiconus costulatus Missarzhevsky 1989
Bemella jacutica Rozanov and Missarzhevsky 1966
 Pelagiellida - Aldanellidae
Aldanella crassa
Aldanella crassa Rozanov et al. 1969
Scyphozoa
 Anabaritida - Anabaritidae
Tiksitheca licis, Anabarites signatus, "Lobiochrea natella" = Anabarites natellus, Anabarites kelleri n. sp., Anabarites latus, "Kugdatheca sp." = Anabarites, "Cambrotubulus decurvatus" = Cambrotubulus decurvatus, "Cambrotubulus conicus" = Cambrotubulus decurvatus
Tiksitheca licis Rozanov et al. 1969 jellyfish
Anabarites signatus Missarzhevsky and Mambetov 1981 jellyfish
"Lobiochrea natella" = Anabarites natellus Val'kov and Sysoev 1970 jellyfish
Anabarites kelleri n. sp. Missarzhevsky 1989 jellyfish
Anabarites latus Val'kov and Sysoev 1970 jellyfish
"Kugdatheca sp." = Anabarites Voronova and Missarzhevsky 1969 jellyfish
"Cambrotubulus decurvatus" = Cambrotubulus decurvatus Rozanov et al. 1969 jellyfish
"Cambrotubulus conicus" = Cambrotubulus decurvatus Rozanov et al. 1969 jellyfish