Boyarka River, Polyptychites michalskii zone, Taymyr, Siberia: Valanginian, Russian Federation

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Gochteodinia villosa
Gongylodinium acineum
Nodosariata - Robertinida - Ceratobuliminidae
Reinholdella tatarica
Nodosariata - Nodosariida - Nodosariidae
Astacolus suspectus
Astacolus bronni
Astacolus aff. decalvatus
Nodosaria incomes
Nodosariata - Vaginulinida - Vaginulinidae
Lenticulina nivalis
Lenticulina muensteri Bartenstein and Brand 1937
synonym of Lenticulina munsteri
Nodosariata - Polymorphinida - Polymorphinidae
Globulina praelacrima
Ichthyolariidae
Geinitzinita arctocretacea
unclassified
Marginulina striatocostata
spelled with current rank as Cristellaria (Marginulina)
Marginulina corneola
spelled with current rank as Cristellaria (Marginulina)
Marginulina gracilissima
spelled with current rank as Cristellaria (Marginulina)
Marginulina robusta
spelled with current rank as Cristellaria (Marginulina)
Ammodiscidae
Glomospirella gaultina
Cephalopoda - Ammonitida - Polyptychitidae
Dichotomites aff. tardescissus
Polyptychites rectangulatus (Bogoslowsky 1902)
Euryptychites sp. Pavlow 1914
spelled with current rank as Polyptychites (Euryptychites)
Astieriptychites tenuiptychus Bodylevsky 1960
synonym of Polyptychites (Astieriptychites) astieriptychus
Polyptychites plenus Burdykina 1983
recombined as Polyptychites (Polyptychites) plenus
Polyptychites michalskii Bogoslowsky 1902
recombined as Polyptychites (Polyptychites) michalskii
Temnoptychites (Costamenjaites) mediatus
synonym of Nikitinoceras
Dinophyceae - Pareodiniaceae
Pareodinia sp. Deflandre 1947
Batioladinium cf. longicornutum Brideaux 1975
Dinophyceae
Trichodinium speetonense
Wallodinium krutzschii Habib 1972
Lithodinia sp. Eisenack 1935
Spiniferites sp. Mantell 1850
Apteodinium spongiosum
Dinophyceae - Gonyaulacales - Ceratiaceae
Muderongia simplex Alberti 1961
Phoberocysta tabulata
Dinophyceae - Gonyaulacales
Chlamydophorella sp. Cookson and Eisenack 1958
Dinophyceae - Gonyaulacales - Areoligeraceae
Circulodinium compta
Cyclonephelium ex gr. cuculliforme
Dinophyceae - Gonyaulacales
Heslertonia heslertonensis
Valensiella ovula
Dinophyceae - Gonyaulacales - Gonyaulacaceae
Cribroperidinium spinoreticulatum
Sirmiodinium grossii Alberti 1961
Rhynchodiniopsis sp. Deflandre 1935
Cassiculosphaeridia magna Davey 1974
aff. Kleithriasphaeridium sp. Davey 1974
Hystrichodinium pulchrum Deflandre 1935
Oligosphaeridium sp. Davey and Williams 1966
Oligosphaeridium complex Davey and Williams 1966
Gonyaulacysta sp. Deflandre 1964
ex gr. cretacea/helicoidea
unclassified
Cerbia sp. Below 1981
see common names

Geography
Country:Russian Federation
Coordinates: 70.5° North, 97.3° East (view map)
Paleocoordinates:70.5° North, 81.4° East
Basis of coordinate:estimated from map
Geographic resolution:outcrop
Time
Period:Cretaceous Epoch:Early/Lower Cretaceous
Stage:Valanginian 10 m.y. bin:Cretaceous 1
Key time interval:Valanginian
Age range of interval:139.80000 - 132.90000 m.y. ago
Stratigraphy
Local section:Boyarka River Local bed:160-185 m
Local order:bottom to top
Stratigraphic resolution:group of beds
Stratigraphy comments: Polyptychites michalskii zone
Lithology and environment
Primary lithology: lithified sandstone
Secondary lithology: lithified sandy siltstone
Lithology description: with concretions
Environment:coastal indet.
Geology comments: fairly shallow facies from the southernmost part of the Khatanga Basin
Taphonomy
Size of fossils:macrofossils,microfossils
Collection methods and comments
Collection methods:field collection
Reason for describing collection:biostratigraphic analysis
Metadata
Database number:65458
Authorizer:W. Kiessling Enterer:U. Merkel
Research group:marine invertebrate,micropaleontology
Created:2006-09-22 07:40:18 Last modified:2006-09-22 10:40:18
Access level:the public Released:2006-09-22 07:40:17
Creative Commons license:CC BY
Reference information

Primary reference:

18860. N. I. Shulgina, M. D. Burdykina, V. A. Basov and N. Arhus. 1994. Distribution of ammonites, foraminifera and dinoflagellate cysts in the Lower Cretaceous reference sections of the Khatanga Basin, and Boreal Valanginian biogeography. Cretaceous Research 15(1):1-16 [W. Kiessling/U. Merkel]