PBDB Collection

west Prianabar Section, Medvezhin Formation, Member 1 (Cambrian of Russian Federation)

Where: Siberia, Russian Federation (70.7° N, 103.0° E: paleocoordinates 24.4° S, 6.7° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Aldanocyathus sunnaginicus other zone, 1 Member (Medvezhin Formation), Tommotian (525.5 - 521.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: lithified limestone

• limestone (from key)

Size classes: macrofossils, mesofossils, microfossils

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 50428: authorized by Pete Wagner, entered by Pete Wagner on 15.05.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names

unclassified
-	Wiwaxiidae indet., Kotujitheca ? curta Wiwaxiidae indet. Kotujitheca ? curta
Brachiopoda
Tommotiida - Sunnaginiidae	Sunnaginia sp. Sunnaginia sp. Rozanov et al. 1969
Tommotiida - Tommotiidae	"Tommotia sp." = Camenella "Tommotia sp." = Camenella Rozanov and Missarzhevsky 1966
Hyolitha
Orthothecida -	"Turcutheca cotuiensis" = Khetatheca cotuiensis, Turcutheca rugata, Turcutheca crasseocochlia "Turcutheca cotuiensis" = Khetatheca cotuiensis Syssoiev 1959 Turcutheca rugata Syssoiev 1959 Turcutheca crasseocochlia Syssoiev 1962
Orthothecida - Allathecidae	Allatheca concinna, Exilitheca sp., Exilitheca multa Allatheca concinna Rozanov et al. 1969 Exilitheca sp. Exilitheca multa
Orthothecimorpha
Circothecida -	Ladatheca dorsocava, Ladatheca annae Ladatheca dorsocava Ladatheca annae
Hyolithomorpha
-	Ovalitheca mongolica Ovalitheca mongolica
Granoconus trematus
-	Granoconus trematus Granoconus trematus Yü 1979
Helcionelloida
- Helcionellidae	Anabarella plana, Bemella jacutioa, "Latouchella korobkovi" = Oelandiella korobkovi, Igorella ungulata Anabarella plana Vostokova 1962 Bemella jacutioa "Latouchella korobkovi" = Oelandiella korobkovi Vostokova 1962 Igorella ungulata Rozanov et al. 1969
Pelagiellida - Aldanellidae	Aldanella crassa, "Aldanella attleborensis" = Aldanella attleborensis, "Aldanella utchurica" = Aldanella attleborensis Aldanella crassa Rozanov et al. 1969 "Aldanella attleborensis" = Aldanella attleborensis Shaler and Foerste 1888 "Aldanella utchurica" = Aldanella attleborensis Shaler and Foerste 1888
Purella cristata
- Maikhanellidae	Purella cristata Purella cristata Missarzhevsky 1974
Tergomya
Cyrtonellida -	Yangtzeconus priscus Yangtzeconus priscus Yü 1979
Aculifera
- Halkieriidae	Halkieria intercostata Halkieria intercostata

Sachitida - Siphogonuchitidae	Siphogonuchites sp. Siphogonuchites sp. Qian 1977
Hyolithelminthida - Torellellidae	Torellella lentiformis Torellella lentiformis Syssoiev 1962
Hyolithelminthida - Hyolithellidae	Hyolithellus tenuis, Hyolithellus vladimirovae Hyolithellus tenuis Rozanov and Missarzhevsky 1966 Hyolithellus vladimirovae Rozanov and Missarzhevsky 1966
Scyphozoa
Anabaritida - Anabaritidae	Anabarites tristichus, Anabarites trisulcatus, Cambrotubulus decurvatus, "Anabarites ternarius" = Selindeochrea ternaria Anabarites tristichus Rozanov et al. 1969 jellyfish Anabarites trisulcatus Voronova and Missarzhevsky 1969 jellyfish Cambrotubulus decurvatus Rozanov et al. 1969 jellyfish "Anabarites ternarius" = Selindeochrea ternaria Rozanov et al. 1969 jellyfish
Coleolus
- Coleolidae	Coleolus trigonus Coleolus trigonus Syssoiev 1962