Section 1 (locality M410), Purella cristata zone, left bank of Kotuj River (Cambrian of Russian Federation)

Also known as samples 1/C through 1/39.3 and M410/73

Where: Krasnoyarsk Krai, Russian Federation (70.1° N, 114.0° E: paleocoordinates 22.9° S, 10.4° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Purella cristata small shelly zone, Medvezhya Formation, Tommotian (525.5 - 521.0 Ma)

• Fortunian Stage of Terreneuvian. "lowermost sampled part of section 1 belongs to the uppermost Nemakit-Daldyn Formation (thrombolitic boundstone of the Koril Member; Kaufman et al. 1996), which is overlain above the sequence boundary by limestone beds of the Medvezhya Formation grading upwards into grey limestone with oolites attributable to the Kugda-Yuryakh Formation (e.g., Dyatlova et al. 1990; Fig. 4)."

Environment/lithology: shallow subtidal; lithified limestone

• Not stated but presumably shallow subtidal given adjacent lithologies
• "limestone beds"

Size classes: mesofossils, microfossils

Preservation: mold/impression, replaced with phosphate

Collected by Artem Kouchinsky, Vladimir Pavlov in 1992, 2007, 2008

• Reposited at Swedish Museum of Natural History; Acid residue from carbonates

Primary reference: A. Kouchinsky, S. Bengtson, E. Landing, M. Steiner, M. Vendrasco and K. Ziegler. 2017. Terreneuvian stratigraphy and faunas from the Anabar Uplift, Siberia. Acta Palaeontologica Polonica 62(2):311-440 [P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 233166: authorized by Phil Novack-Gottshall, entered by Phil Novack-Gottshall on 17.01.2024

Creative Commons license: CC BY (attribution)

Taxonomic list

Foraminifera
 Astrorhizacea - Bathysiphonidae
Archaeooides granulatus
  -
Fomitchella infundibuliformis
  -
"Fomitchella infundibuliformis" = Fomitchella infundabiliformis
"Fomitchella infundibuliformis" = Fomitchella infundabiliformis Rozanov et al. 1969
Scyphozoa
 Anabaritida - Anabaritidae
Cambrotubulus decurvatus n. sp. Rozanov et al. 1969 jellyfish
Anabarites kelleri Missarzhevsky 1989 jellyfish
Anabarites trisulcatus Voronova and Missarzhevsky 1969 jellyfish
Anabarites biplicatus Missarzhevsky 1989 jellyfish
 Sachitida - Siphogonuchitidae
Helcionelloida
  - Helcionellidae
Securiconus cf. simus Luo et al. 1982
Bemella ? jacutica Rozanov and Missarzhevsky 1966
Anabarella plana Vostokova 1962
Oelandiella korobkovi Vostokova 1962
 Pelagiellida - Aldanellidae
Aldanella crassa Rozanov et al. 1969
Aldanella attleborensis Shaler and Foerste 1888
 Helcionellida - Carinopeltidae
  - Ceratoconidae
Ceratoconus striatus Chen and Zhang 1980
Yunnanopleura
  - Maikhanellidae
Purella cristata
  - Maikhanellidae
Purella cristata Missarzhevsky 1974
Hyolitha
 Orthothecida -
Khetatheca cotuiensis Syssoiev 1959