Nirudinskii Fm., Bolishaya Nirunda River (Ordovician of Russian Federation)

Where: Siberia, Russian Federation (63.0° N, 95.0° E: paleocoordinates 12.0° N, 14.3° E)

• local area-level geographic resolution

When: Nirunda Formation, Pusgillian (449.5 - 449.2 Ma)

• formation-level stratigraphic resolution

Environment/lithology: shallow subtidal; lithified, argillaceous limestone and dolomite

• interbedded limestone and dolomite with some intercalations of shale

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: A. V. Kanygin. 1977. Problems in the stratigraphy of the Ordovician and Silurian of Siberia. Trudy Instituta Geologii i Geofiziki Vypusk Akademiya Nauk SSSR 372:1-135 [A. Miller/P. Novack-Gottshall/M. Uhen]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 9312: authorized by Arnold Miller, entered by Phil Novack-Gottshall on 13.10.2000

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
unclassified
  -
? Spathognathus sp., Tetraprionoidus sp.
Conodonta
  - Distacodidae
Distacodus sp.
Distacodus sp. Pander 1856 conodont
 Protopanderodontida - Acanthodontidae
Acanthodus sp.
 Protopanderodontida - Drepanoistodontidae
Paltodus sp.
Paltodus sp. Pander 1856 conodont
 Protopanderodontida - Protopanderodontidae
Drepanodus sp., Scolopodus sp.
Drepanodus sp. Pander 1856 conodont
Scolopodus sp. conodont
  -
Scandodus sp.
Scandodus sp. Lindstrom 1955 conodont
 Prioniodontida - Rhipidognathidae
? Rhipidognathus sp.
? Rhipidognathus sp. Branson et al. 1951 conodont
 Prioniodontida - Multioistodontidae
Acanthodina sp.
 Prioniodontida - Phragmodontidae
Acanthocordylodus sp.
 Prioniodontida -
Aphelognathus sp.
 Panderodontida - Panderodontidae
Panderodus sp.
Panderodus sp. Ethington 1959 conodont
  -
Zygognathus sp.
Zygognathus sp. Branson et al. 1951 conodont
 Belodellida - Belodellidae
Belodella sp.
Belodella sp. Ethington 1959 conodont
Rhynchonellata
 Rhynchonellida - Trigonirhynchiidae
Rostricellula sp., Lepidocycloides sp.
Rostricellula sp. Ulrich and Cooper 1942
Lepidocycloides sp. Nikiforova and Andreeva 1961
Strophomenata
 Strophomenida - Strophomenidae
? Bellimurina sp.
? Bellimurina sp. Cooper 1956
Stenolaemata
 Trepostomata - Trematoporidae
Batostoma sp.
Batostoma sp. Ulrich 1882
 Trepostomida - Amplexoporidae
Monotrypella sp.
 Esthonioporata - Revalotrypidae
Haplotrypa sp.
Haplotrypa sp. Bassler 1936
 Cryptostomata - Ptilodictyidae
Ensipora sp.
Trilobita
 Corynexochida - Illaenidae
Stenopareia sp.
Stenopareia sp. Holm 1886 trilobite
 Phacopida - Pterygometopidae
Monorakos sp.
Monorakos sp. Schmidt 1886 trilobite