1/28. Along left banks of Malaya Kuonamka River (Cambrian of Russian Federation)

Also known as Section 1

Where: Siberia, Russian Federation (70.2° N, 113.7° E: paleocoordinates 17.1° S, 7.0° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Kuonamkites trilobite zone, 6 Member (Kuonamka Formation), Amgan (510.2 - 504.5 Ma)

• "Kuonamka Formation and belong to the Amgan Stage of the traditional Middle Cambrian of Siberia"; "These can be correlated with lower Stage 5 ... of IUGS"

• bed-level stratigraphic resolution

Environment/lithology: marine; concretionary limestone

• "The fossils are derived from limestone beds and concretions in the bituminous Kuonamka Formation"; "Bituminous black shale and layers of black chert alternating with minor brown bituminous mudstones. Thickness: 6.5 m."

Size classes: mesofossils, microfossils

Preservation: replaced with silica

Collected by A. Kouchinsky, S. Bengtson in 1996

Primary reference: A. Kouchinsky, S. Bengtson, S. Clausen, A. Gubanov, J. M. Malinky and J. S. Peel. 2011. A middle Cambrian fauna of skeletal fossils from the Kuonamka Formation, northern Siberia. Alcheringa 35(1):123-189 [P. Wagner/H. Street]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 110822: authorized by Pete Wagner, entered by Hallie Street on 14.06.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Coeloscleritophora
 Chancelloriida -
Chancelloriida indet. Walcott 1920
 Chancelloriida - Chancelloriidae
Chancelloria cf. eros Walcott 1920
Conodonta
  - Amphigeisinidae
Microdictyon
  -
Microdictyon robisoni Bengtson et al. 1986
Bradoriida
  -
unclassified
  -
"Lobopoda indet." = Lobopodia
"Lobopoda indet." = Lobopodia
Hyolitha
  -
 Hyolithida -
Hyolithida indet. Mathew 1962
 Orthothecida -
Protoconodonta
  -
Protoconodonta indet. Landing 1995
 Pseudoconodontida -
Mongolitubulus reticulatus Kouchinsky et al. 2011