PBDB Collection

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

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Nodosariata
Nodosariida - Nodosariidae	Astacolus trigonius Astacolus trigonius
Vaginulinida - Vaginulinidae	aff. Lenticulina sossipatrovae, Lenticulina gudinae aff. Lenticulina sossipatrovae originally entered as "Lenticulina aff. sossipatrovae" Lenticulina gudinae
Lingulata
Lingulida - Lingulidae	Lingula sp. Lingula sp. Bruguiére 1797
Cephalopoda
Phylloceratida - Phylloceratidae	Phylloceras sp. Phylloceras sp. Suess 1865 ammonite
Ammonitida - Polyptychitidae	Hectoroceras kochi, Subcraspedites anglicus, Subcraspedites pressulus, Subcraspedites subpressulus, aff. Subcraspedites subpressulus, Subcraspedites rossicus, Surites cf. clementianus Hectoroceras kochi Spath 1947 ammonite Subcraspedites anglicus ammonite Subcraspedites pressulus ammonite Subcraspedites subpressulus ammonite aff. Subcraspedites subpressulus ammonite originally entered as "Subcraspedites aff. subpressulus" Subcraspedites rossicus ammonite Surites cf. clementianus ammonite originally entered as "Surites cf. clementianus"
Belemnitida - Cylindroteuthididae	Lagonibelus elongatus, Lagonibelus sibiricus Lagonibelus elongatus belemnite Lagonibelus sibiricus belemnite
Belemnitida - Belemnitidae	Cylindroteuthis baculus, Cylindroteuthis repentina, Belemnites indet. Cylindroteuthis baculus belemnite Cylindroteuthis repentina belemnite Belemnites indet. Lamarck 1799 belemnite
Bivalvia
Nuculida - Nuculidae	Nucula sp. Nucula sp. Lamarck 1799 nut clam
Carditida - Astartidae	Prorokia sp., Astarte sp. Prorokia sp. Böhm 1883 clam Astarte sp. Sowerby 1816 clam
Lucinida - Lucinidae	? Lucina sp. ? Lucina sp. Bruguière 1797 clam originally entered as "Lucina? sp."
Myalinida - Inoceramidae	Inoceramus sp. Inoceramus sp. Sowerby 1814 clam
Pectinida - Buchiidae	Buchia andersoni, Buchia lahuseni, Buchia unschensis, Buchia okensis, Buchia uncitoides, Buchia terebratuloides, Buchia fischeriana, Buchia volgensis Buchia andersoni scallop Buchia lahuseni scallop Buchia unschensis scallop Buchia okensis Pavlow 1907 scallop Buchia uncitoides Pavlow 1907 scallop Buchia terebratuloides Lahusen 1888 scallop Buchia fischeriana d'Orbigny 1845 scallop Buchia volgensis Lahusen 1888 scallop
Pectinida - Oxytomidae	Oxytoma sp. Oxytoma sp. Meek and Hayden 1865 scallop