Section 1 (locality M410), Kugda-Yuryakh formation, left bank of Kotuj River (Cambrian of Russian Federation)

Also known as Sample 1/6

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

• coordinate stated in text

• outcrop-level geographic resolution

When: Kugda-Yuryakh Formation, Tommotian (525.5 - 521.0 Ma)

• Stage 2 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: sand shoal; lithified, ooidal, gray grainstone

• oolitic shoals
• "grey limestone with oolites"

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 233169: authorized by Phil Novack-Gottshall, entered by Phil Novack-Gottshall on 17.01.2024

Creative Commons license: CC BY (attribution)

Taxonomic list

Watsonella crosbyi
  -
Watsonella crosbyi Grabau 1900
Barskovia hemisymmetrica
  - Khairkhaniidae
Aculifera
  - Halkieriidae
Halkieria sp. Poulsen 1967
Helcionelloida
 Helcionellida - Carinopeltidae
 Helcionellida - Helcionellidae
"Pseudoyangtzespira selindeica" = Oelandiella korobkovi, Anabarella plana, Bemella ? jacutica
"Pseudoyangtzespira selindeica" = Oelandiella korobkovi Vostokova 1962
Anabarella plana Vostokova 1962
Bemella ? jacutica Rozanov and Missarzhevsky 1966
Hyolitha
 Orthothecida -
Turcutheca sp. Rozanov et al. 1969
Scyphozoa
 Anabaritida - Anabaritidae
Anabarites hexasulcatus Missarzhevsky 1974 jellyfish
Coeloscleritophora
 Chancelloriida - Chancelloriidae
Chancelloria symmetrica Vassiljeva 1985