PBDB Collection

Nemnekey Section, upper half of bioherm [Sunagin Mbr, Pestrotsvet Fm] (Cambrian of Russian Federation)

Also known as Reef 1831

Where: Siberia, Russian Federation (57.2° N, 132.0° E)

• Paleocoordinates: 1.3° N, 91.2° W (Wright 2013)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Anabarites trisulcatus small shelly zone, Pestrotsvet Formation, Nemakit-Daldynian (538.8 - 525.5 Ma)

• Dokidocyathus regularis zone. AGE: Nemakit-Daldynian; refined by A. Hendy (6/2009) on the basis of biostratigraphic data (= Anabarites trisulcatus zone).

• bed-level stratigraphic resolution

Environment/lithology: reef, buildup or bioherm; lithified limestone

• varriegated limestone with archaeocyathan bioherms (from key)

Size class: macrofossils

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 50419: authorized by Pete Wagner, entered by Pete Wagner on 14.05.2005

Creative Commons license: CC0 (CC0)

Taxonomic list

Show authors, comments, and common names

unclassified
-	Lophochites sp., Kugdatella sp. Lophochites sp. Kugdatella sp.
Aculifera
- Halkieriidae	Halkieria saccifromis Halkieria saccifromis
Salanyella
-	Salanyella sp. Salanyella sp. Missarzhevsky 1980
Helcionelloida
Pelagiellida - Aldanellidae	Aldanella sp., Aldanella ex gr. attleborensis Aldanella sp. Vostokova 1962 Aldanella ex gr. attleborensis Shaler and Foerste 1888
- Helcionellidae	"Archaeospira sp." = Latouchella, Emarginoconus cf. mirus, "Latouchella maidipingensis" = Oelandiella maidipingensis, Igorella hamata "Archaeospira sp." = Latouchella Cobbold 1921 Emarginoconus cf. mirus Yü 1979 "Latouchella maidipingensis" = Oelandiella maidipingensis Yü 1974 Igorella hamata Yü 1979
- Stenothecidae	"Heraultipegma sp." = Watsonella, "Heraultipegma sibirica" = Watsonella crosbyi "Heraultipegma sp." = Watsonella Grabau 1900 "Heraultipegma sibirica" = Watsonella crosbyi Grabau 1900
Purella cristatus
- Maikhanellidae	"Purella cristatus" = Purella cristata "Purella cristatus" = Purella cristata Missarzhevsky 1974
Hyolitha
Orthothecida -	"Kotuitheca sp." = Kotuyitheca, Turcutheca sp., Turcutheca crasseocochlia "Kotuitheca sp." = Kotuyitheca Missarzhevsky 1974 Turcutheca sp. Rozanov et al. 1969 Turcutheca crasseocochlia Syssoiev 1962
Orthothecida - Allathecidae	Allatheca cf. concinna Allatheca cf. concinna Rozanov et al. 1969
Orthothecida - Triplicatellidae	Triplicatella disdona Triplicatella disdona
Orthothecida -	Nikatheca cf. digna Nikatheca cf. digna
Orthothecida - Circothecidae	Conotheca mammilata Conotheca mammilata Rozanov et al. 1969
Orthothecimorpha
Circothecida -	Ladatheca sp. Ladatheca sp.
Coeloscleritophora
Chancelloriida - Chancelloriidae	Chancelloria sp. Chancelloria sp. Walcott 1920
Scyphozoa
Anabaritida - Anabaritidae	Anabarites trisulcatus, Tiksitheca licis, "Anabarites ternarius" = Selindeochrea ternaria Anabarites trisulcatus Voronova and Missarzhevsky 1969 jellyfish Tiksitheca licis Rozanov et al. 1969 jellyfish "Anabarites ternarius" = Selindeochrea ternaria Rozanov et al. 1969 jellyfish
Conularina - Hexangulaconulariidae	? Arthrochites emeishanensis ? Arthrochites emeishanensis Chen 1982 jellyfish