Kirenskii-Kudrinskii Fm., Kulumbe River Valley (Ordovician of Russian Federation)

Where: Siberia, Russian Federation (68.0° N, 88.0° E: paleocoordinates 2.3° S, 16.0° E)

• local area-level geographic resolution

When: Amarkan Formation, Early/Lower Llandeilo (466.0 - 460.9 Ma)

• PJW: Kirenskii-Kudrinskii Stage is Amarkan formation in Kulumbe.

• formation-level stratigraphic resolution

Environment/lithology: deep subtidal shelf; lithified, silty, sandy shale and packstone

• Storm tempestites?
• cyclical shale, siltstone, sandstone, and limestone (packstone)

Size class: macrofossils

Collection methods: JA: marked by Novack-Gottshall without explanation as omitting some genera, some macrofossils, some microfossils, and species names, but apparently complete

Primary reference: B. S. Sokolov. 1982. Ordovician of the siberian Platform: Key section on the Kulumbe River. Academy of Sciences of the USSR, Siberian Branch, Transactions 506:1-239 [A. Miller/P. Novack-Gottshall]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 9296: authorized by Arnold Miller, entered by Phil Novack-Gottshall on 12.10.2000

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
unclassified
  -
Cyrtoniodus sp., Drepanodistacodus sp., Fidellitella sp., Prybilina sp., Subcordylodus sp.
Conodonta
 Protopanderodontida - Drepanoistodontidae
Drepanoistodus sp.
Drepanoistodus sp. Lindstrom 1971 conodont
  -
Trichonodella sp.
Trichonodella sp. Branson and Branson 1947 conodont
 Prioniodontida - Cyrtoniodontidae
Bryantodina sp.
Bryantodina sp. Stauffer 1935 conodont
 Prioniodontida -
Oulodus sp., "Microcoelodus sp." = Erismodus, "Ptiloconus sp." = Erismodus, Phragmodus sp.
Oulodus sp. Branson and Mehl 1933 conodont
"Microcoelodus sp." = Erismodus conodont
"Ptiloconus sp." = Erismodus conodont
Phragmodus sp. Branson and Mehl 1933 conodont
  - Coleodontidae
Stereoconus sp.
Stereoconus sp. Branson and Mehl 1933 conodont
Stenolaemata
 Trepostomata - Heterotrypidae
Stigmatella sp.
Stigmatella sp. Ulrich and Bassler 1906
Rhynchonellata
 Rhynchonellida - Trigonirhynchiidae
Rostricellula sp.
Rostricellula sp. Ulrich and Cooper 1942
Ostracoda
 Palaeocopida - Leperditellidae
Leperditella sp.
 Beyrichicopida - Soanellidae
Quadrilobella sp.
 Leperditellocopida - Primitiidae
Primitia sp.
Primitia sp. Jones and Holl 1923 ostracod
 Leperditellocopida - Schmidtellidae
Schmidtella sp.
Schmidtella sp. Ulrich 1892 ostracod
 Leperditellocopida - Aparchitidae
Aparchites sp., Ginella sp.
Ginella sp. Ivanova 1960 ostracod
Ambalodus
  -
? Ambalodus sp.
? Ambalodus sp. Branson and Mehl 1933