Bol’shaya Kuonamka River 8/23.3 (Cambrian of Russian Federation)

Also known as Section 8

Where: Siberia, Russian Federation (70.7° N, 113.0° E: paleocoordinates 17.0° S, 6.2° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Kuonamkites trilobite zone, 6 Member (Kuonamka Formation), Solvan (513.0 - 501.0 Ma)

• Amgan stage of Siberian scale. Kuanamkites zone; "correlated with lower Stage 5 of IUGS"

• bed-level stratigraphic resolution

Environment/lithology: lime mudstone

• "Grey fossiliferous mudstones with minor wacke- and packstone layers. Thick- ness: 2.6 m."

Size classes: macrofossils, microfossils

Preservation: replaced with silica

Collected by A. Kouchinsky, S. Bengtson in 1996

• Swedish Museum of Natural History

Primary reference: A. P. Gubanov, A.V. Kouchinsky, J.S. Peel and S. Bengston. 2004. Middle Cambrian molluscs of ‘Australian’ aspect from northern Siberia. Alcheringa 28(1):1-20 [P. Wagner/P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 49429: authorized by Pete Wagner, entered by Pete Wagner on 15.04.2005, edited by Hallie Street

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Coeloscleritophora
 Chancelloriida -
Chancelloriida indet. Walcott 1920
 Chancelloriida - Chancelloriidae
Chancelloria cf. eros Walcott 1920
unclassified
  -
Mollusca indet. Linnaeus 1758
Helcionelloida
 Pelagiellida - Pelagiellidae
Pelagiella spp. Matthew 1895
 Helcionellida - Yochelcionellidae
Yochelcionella sp. Runnegar and Pojeta 1974
Yochelcionella ostentata Runnegar and Jell 1976
Hyolitha
  -
 Hyolithida -
Hyolithida indet. Mathew 1962
Protoconodonta
  -
Protoconodonta indet. Landing 1995
Palaeoscolecida
 Cricocosmida - Palaeoscolecidae
Microdictyon
  -
Microdictyon sp. Bengston et al. 1981
Microdictyon robisoni Bengtson et al. 1986
Bradoriida
  -
unclassified
  -
"Lobopoda indet." = Lobopodia
"Lobopoda indet." = Lobopodia
Conodonta
 Paraconodontida - Furnishinidae
  - Amphigeisinidae
Life
 Pseudoconodontida -
Mongolitubulus reticulatus Kouchinsky et al. 2011