Bol’shaya Kuonamka River 8/17.6 (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, 5 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

• "The fossils are derived from limestone beds in the bituminous Kuonamka Formation"; "Black bituminous shale with locally developed layers of grey lime mudstone concretions. Thickness: 1.2 m." (Kouchinsky, 2011)

Size classes: macrofossils, microfossils

Preservation: replaced with silica

Collected by A. Kouchinsky, S. Bengtson in 1996

• Swedish Museum of Natural History

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: taxonomic analysis

PaleoDB collection 110823: authorized by Pete Wagner, entered by Hallie Street on 14.06.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Hexactinellida
  -
Hexactinellida indet. Schmidt 1870 glass sponge
Coeloscleritophora
 Chancelloriida -
Chancelloriida indet. Walcott 1920
Hyolitha
  -
Protoconodonta
  -
Protoconodonta indet. Landing 1995
Microdictyon
  -
Microdictyon robisoni Bengtson et al. 1986
unclassified
  -
"Lobopoda indet." = Lobopodia, Echinodermata indet.
"Lobopoda indet." = Lobopodia
Edrioasteroidea
 Edrioasterida -
Conodonta
 Paraconodontida - Furnishinidae
  - Amphigeisinidae