Boyarka River-3 (Cretaceous of Russian Federation)
Where: Siberia, Russian Federation (70.8° N, 97.6° E: paleocoordinates 71.2° N, 81.5° E)
• small collection-level geographic resolution
When: Hectoroceras kochi zone, II Member, Berriasian (145.0 - 139.8 Ma)
• member-level stratigraphic resolution
Environment/lithology: marine; gray, green, yellow, silty claystone
• lithology is generally a greenish-grey clayey silt, yellow brown in some places; intercalations of grey-yellow plastic clay present; horizons and individual concretions of calcareous siltstone traced throughout the member
Size class: macrofossils
Primary reference: V. N. Saks, ed. 1975. The Jurassic-Cretaceous Boundary and the Berriasian Stage in the Boreal Realm. 1-319 [M. Patzkowsky/K. Layou/P. Wagner]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 2468: authorized by Mark Patzkowsky, entered by Karen Layou on 05.07.1999, edited by Austin Hendy
Creative Commons license: CC BY (attribution)
Taxonomic list
Show authors, comments, and common names
Nodosariata | |
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Cephalopoda | |
Surites cf. clementianus, Hectoroceras kochi, Subcraspedites anglicus, Subcraspedites pressulus, Subcraspedites subpressulus, aff. Subcraspedites subpressulus, Subcraspedites rossicus
Hectoroceras kochi Spath 1947 ammonite
Subcraspedites anglicus ammonite
Subcraspedites pressulus ammonite
Subcraspedites subpressulus ammonite
Subcraspedites rossicus ammonite | |
Phylloceras sp. Suess 1865 ammonite | |
Lagonibelus elongatus belemnite
Lagonibelus sibiricus belemnite | |
Belemnites indet. Lamarck 1799 belemnite
Cylindroteuthis baculus belemnite
Cylindroteuthis repentina belemnite | |
Bivalvia | |
Nucula sp. Lamarck 1799 nut clam | |
Oxytoma sp. Meek and Hayden 1865 scallop | |
Buchia andersoni, Buchia lahuseni, Buchia unschensis, Buchia volgensis, Buchia fischeriana, Buchia terebratuloides, Buchia uncitoides, Buchia okensis
Buchia andersoni scallop
Buchia lahuseni scallop
Buchia unschensis scallop
Buchia volgensis Lahusen 1888 scallop
Buchia fischeriana d'Orbigny 1845 scallop
Buchia terebratuloides Lahusen 1888 scallop
Buchia uncitoides Pavlow 1907 scallop
Buchia okensis Pavlow 1907 scallop | |
Inoceramus sp. Sowerby 1814 clam | |
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Astarte sp. Sowerby 1816 clam
Prorokia sp. Böhm 1883 clam | |
Lingulata | |
Lingula sp. Bruguiére 1797 |