PBDB Collection

Khorbusuonka River, Upper Kessyusa Formation (Cambrian to of Russian Federation)

Where: Sakha, Russian Federation (71.3° N, 124.0° E: paleocoordinates 26.3° S, 13.4° W)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Upper Member (Kessyusa Formation), Nemakit-Daldynian to Nemakit-Daldynian (538.8 - 521.0 Ma)

• Upper Nemakit-Daldynian-Lower Tommotian

• group of beds-level stratigraphic resolution

Environment/lithology: transition zone or lower shoreface; lithified siltstone and lithified sandstone

• outer shoreface of a siliciclastic shelf

• siltstones with intercalated fine- to medium-grained sandstone beds, quartz-pebble conglomerate beds, oolite at the top of the formation

Size class: macrofossils

Primary reference: A. H. Knoll, J. P. Grotzinger, A. J. Kaufman and P. Kolosov. 1995. Integrated approaches to terminal Proterozoic stratigraphy: an example from the Olenek Uplift, northeastern Siberia. Precambrian Research 73:251-270 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 99229: authorized by Wolfgang Kiessling, entered by Uta Merkel on 03.11.2010, edited by Pete Wagner

Creative Commons license: CC BY (attribution)

Taxonomic list

• data from Valko 1987, Missarzhevsky 1989 and Bokova and Vasilyeva 1990

Show authors, comments, and common names

unclassified
-	Anabarithellus hexasulcatus, Crosbitheca arcuaria, Girospina araniformis, Syssospine irregularis, Leiospheridia sp., Ceratophyton vernicosum, Michrystridium tornatum, Cephalonyx sp. Anabarithellus hexasulcatus Crosbitheca arcuaria Girospina araniformis Syssospine irregularis Leiospheridia sp. Ceratophyton vernicosum Michrystridium tornatum Cephalonyx sp.

Hyolithelminthida - Hyolithellidae	Hyolithellus tenuis, Hyolithellus vladimirovae Hyolithellus tenuis Rozanov and Missarzhevsky 1966 Hyolithellus vladimirovae Rozanov and Missarzhevsky 1966
Hyolitha
Orthothecida -	Turcutheca crasseocochlia, Turcutheca rugata, Khetatheca cotuiensis Turcutheca crasseocochlia Syssoiev 1962 Turcutheca rugata Syssoiev 1959 Khetatheca cotuiensis Syssoiev 1959
Orthothecimorpha
Circothecida -	Spinulitheca rotunda, Spinulitheca billingsi, Ladatheca blanda, Ladatheca dorsocava Spinulitheca rotunda Spinulitheca billingsi Syssoiev 1962 Ladatheca blanda Ladatheca dorsocava
Brachiopoda
Mitrosagophora - Tommotiidae	"Tommotia koslowzkii" = Camenella "Tommotia koslowzkii" = Camenella
Watsonella
-	"Heraultipegma sp." = Watsonella "Heraultipegma sp." = Watsonella Grabau 1900
Helcionelloida
Helcionellida - Helcionellidae	Bemella jacutica, Securiconus sp., Anabarella plana, "Latouchella sibirica" = Oelandiella korobkovi Bemella jacutica Rozanov and Missarzhevsky 1966 Securiconus sp. Jiang 1980 Anabarella plana Vostokova 1962 "Latouchella sibirica" = Oelandiella korobkovi Vostokova 1962
Pelagiellida - Aldanellidae	Aldanella attleborensis, Aldanella cf. crassa, Aldanella costata Aldanella attleborensis Shaler and Foerste 1888 Aldanella cf. crassa Rozanov et al. 1969 Aldanella costata Missarzhevsky 1989
Barskovia hemisymmetrica
- Khairkhaniidae	Barskovia hemisymmetrica Barskovia hemisymmetrica Golubev 1976 [entered as Barskovia hemisimmetrica]
Aculifera
- Halkieriidae	Halkieria costata, Halkieria sp., Halkieria sacciformis Halkieria costata Halkieria sp. Poulsen 1967 Halkieria sacciformis Meshkova 1969

Sachitida - Siphogonuchitidae	Siphogonuchites sp. Siphogonuchites sp. Qian 1977
Coeloscleritophora
Chancelloriida - Chancelloriidae	Chancelloria sp. Chancelloria sp. Walcott 1920
Fomitchella infundibuliformis
-	"Fomitchella infundibuliformis" = Fomitchella infundabiliformis "Fomitchella infundibuliformis" = Fomitchella infundabiliformis Rozanov et al. 1969
Scyphozoa
Anabaritida - Anabaritidae	"Cambrotubulus sibiricus" = Cambrotubulus decurvatus, "Cambrotubulus conicus" = Cambrotubulus decurvatus, Tiksitheca sp., Tiksitheca licis, Selindeochrea sp., Selindeochrea ternaria, "Anabarites tripartitus" = Selindeochrea tripartita, Anabarites latus, "Jakutiochrea tristicha" = Anabarites tristichus, Anabarites signatus, "Kugdatheca voluta" = Anabarites voluta, Anabarites kelleri, "Lobiochrea natella" = Anabarites natellus "Cambrotubulus sibiricus" = Cambrotubulus decurvatus Rozanov et al. 1969 jellyfish "Cambrotubulus conicus" = Cambrotubulus decurvatus Rozanov et al. 1969 jellyfish Tiksitheca sp. Rozanov et al. 1969 jellyfish Tiksitheca licis Rozanov et al. 1969 jellyfish Selindeochrea sp. Val'kov 1982 jellyfish Selindeochrea ternaria Rozanov et al. 1969 jellyfish "Anabarites tripartitus" = Selindeochrea tripartita Rozanov et al. 1969 jellyfish Anabarites latus Val'kov and Sysoev 1970 jellyfish "Jakutiochrea tristicha" = Anabarites tristichus Rozanov et al. 1969 jellyfish Anabarites signatus Missarzhevsky and Mambetov 1981 jellyfish "Kugdatheca voluta" = Anabarites voluta Rozanov et al. 1969 jellyfish Anabarites kelleri Missarzhevsky 1989 jellyfish "Lobiochrea natella" = Anabarites natellus Val'kov and Sysoev 1970 jellyfish

Life -	Granomarginata squamacea, Granomarginata prima, Leiomarginata simplex Granomarginata squamacea acritarchs Granomarginata prima Naumova 1961 acritarchs Leiomarginata simplex Naumova 1961 acritarchs
Prasinophytae
-	Tasmanites tenellus Tasmanites tenellus

Ichnofossils -	Didymaulichnus sp., Planolites sp. Didymaulichnus sp. Young 1972 Planolites sp. Nicholson 1873