Nemnekey Section, Pestrotsvet Formation, Sunagin Member, above bioherm (Cambrian of Russian Federation)

Where: Khabarovsk Krai, Russian Federation (57.2° N, 132.0° E: paleocoordinates 9.4° S, 17.7° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Pestrotsvet Formation, Tommotian (525.5 - 521.0 Ma)

• Dokidocyathus regularis zone

• bed-level stratigraphic resolution

Environment/lithology: lithified limestone

• varriegated limestone (from key)

Size class: macrofossils

Preservation: mold/impression, replaced with phosphate

Primary reference: V. V. Khomentovsky and G. A. Karlova. 1993. Biostratigraphy of the Vendian-Cambrian beds and the lower Cambrian boundary in Siberia. Geological Magazine 130(1):29-45 [P. Wagner/P. Wagner/P. Wagner]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 50420: authorized by Pete Wagner, entered by Pete Wagner on 14.05.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
unclassified
  -
Synotabulites sp.
Aculifera
  - Halkieriidae
Halkieria sacciformis
Halkieria sacciformis Meshkova 1969
Helcionelloida
 Pelagiellida - Aldanellidae
"Aldanella rozanovi" = Aldanella attleborensis
"Aldanella rozanovi" = Aldanella attleborensis Shaler and Foerste 1888
 Helcionellida - Helcionellidae
Igorella ungulata, Emarginoconus cf. mirus
Igorella ungulata Rozanov et al. 1969
 Helcionellida - Stenothecidae
Mellopegma sp.
Mellopegma sp. Runnegar and Jell 1976
Salanyella
  -
Salanyella costulata
Salanyella costulata Missarzhevsky and Mambetov 1981
Watsonella crosbyi
  -
"Heraultipegma sibirica" = Watsonella crosbyi
"Heraultipegma sibirica" = Watsonella crosbyi Grabau 1900
Purella cristata
  - Maikhanellidae
Purella cristata
Purella cristata Missarzhevsky 1974
Barskovia hemisymmetrica
  - Khairkhaniidae
Barskovia hemisymmetrica
Hyolitha
 Orthothecida - Triplicatellidae
Triplicatella didoma
 Orthothecida -
Nikatheca cf. digna
 Orthothecida - Circothecidae
Crossbitheca sp.
Crossbitheca sp. Missarzhevsky 1974
Scyphozoa
 Anabaritida - Anabaritidae
Anabarites kelleri, "Anabarites ternarius" = Selindeochrea ternaria
Anabarites kelleri Missarzhevsky 1989 jellyfish
"Anabarites ternarius" = Selindeochrea ternaria Rozanov et al. 1969 jellyfish
Coeloscleritophora
 Chancelloriida - Chancelloriidae
Chancelloria sp.
Chancelloria sp. Walcott 1920
 Hyolithelminthida - Hyolithellidae
? Hyolithellus sp.
? Hyolithellus sp. Billings 1872