Where: Russian Federation (50.2° N, 155.3° E: paleocoordinates 67.5° N, 168.1° E)
• coordinate based on nearby landmark
• local area-level geographic resolution
When: Inoceramus cuvieri inoceramid zone, Bykov Formation, Middle Turonian (93.5 - 89.3 Ma)
• STRATIGRAPHIC RELATIONS: From "Member 4" of the Bykov Fm, which overlies the Naiba Fm (Cenomanian). AGE: late Early to Middle Turonian, on the basis of ammonite biostratigraphy. STRATIGRAPHIC POSITION: From near top of regional section. PJW: Inoceramus cuvieri zone is Middle Turonian.
• member-level stratigraphic resolution
Environment/lithology: marine; lithified, sandy mudstone
Size class: macrofossils
Preservation: cast, mold/impression
Collected by Yazkova
• COLLECTORS: Authors, Yazkova, Peryt, Zonova, and Kasintzova. REPOSITORY: Specimens studied are housed in the VSEGEI (Vserosyjskij, Nauchno-Issledovatelskij Geologicheskij Institut – All Russian
•Science Research Geological Institute) Museum (Saint Petersburg, Russia), at the University of Silesia, Faculty of Earth Sciences (Sosnowiec, Poland), and at the Institute of Paleobiology, Polish Academy of Sciences (Warsaw).
Primary reference: E. A. Yazykova, D. Peryt, and T. D. Zonovia. 2004. The Cenomanian/Turonian boundary in Sakhalin, Far East Russia: ammonites, inoceramids, foraminifera, and radiolarians. New Zealand Journal of Geology and Geophysics 47:291-320 [A. Hendy/A. Hendy/P. Wagner]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 84216: authorized by Austin Hendy, entered by Austin Hendy on 27.09.2008
Creative Commons license: CC BY (attribution)
Taxonomic list
Bivalvia | |
Inoceramus hobetsensis Nagao and Matsumoto 1939 clam
Inoceramus aff. lamarcki Parkinson 1819 clam | |
Cephalopoda | |
"Neophylloceras ramosum" = Hypophylloceras (Neophylloceras) ramosum
"Neophylloceras ramosum" = Hypophylloceras (Neophylloceras) ramosum Meek 1857 ammonite | |
"Yezoites puerculus" = Yezoites puerculus, "Scaphites planus" = Yezoites puerculus
"Yezoites puerculus" = Yezoites puerculus Jimbo 1894 ammonite
"Scaphites planus" = Yezoites puerculus Jimbo 1894 ammonite | |
Scalarites scalaris ammonite | |
Nipponites mirabilis Yabe 1904 ammonite
Eubostrychoceras cf. japonicum Yabe 1904 ammonite | |
"Gaudryceras denseplicatum" = Gaudryceras (Gaudryceras) denseplicatum, Gaudryceras tenuiliratum, Zelandites mihoensis, Anagaudryceras limatum, Tetragonites glabrus
"Gaudryceras denseplicatum" = Gaudryceras (Gaudryceras) denseplicatum Jimbo 1894 ammonite
Gaudryceras tenuiliratum Yabe 1903 ammonite
Zelandites mihoensis ammonite
Anagaudryceras limatum ammonite
Tetragonites glabrus Jimbo 1910 ammonite | |
Fagesia sp. Pervinquiére 1907 ammonite | |
Jimboiceras planulatiforme Jimbo 1894 ammonite |