Just out | New data on microbiota of the Middle Volgian substage in the Loino Section (Kirov oblast) @ Stratigraphy and Geological Correlation

Just out @ Stratigraphy and Geological Correlation

New data on microbiota of the Middle Volgian substage in the Loino Section (Kirov oblast)


M. A. Ustinova, E. M. Tesakova


The calcareous nannoplankton was established for the first time in Upper Volgian deposits of the Loino Section (Kirov oblast). Here, single coccolites of representatives of genus Watznaueria of wide stratigraphic and geographic distributions dominate. Representatives of genus Zuegrhabdotus are less common, whereas species of genus Polypodorhabdus are rare. The taxonomic composition of the calcareous nannoplankton assemblage does not allow us to distinguish the nannoplankton zone in the Loino Section, but it gives us an idea about its distribution at the Volgian Stage in the Russian Plate. As corresponding microfauna, foraminifers, assigned to the Lenticulina infravolgaensis–Saracenaria pravoslavlevi Zone, and ostracods were identified to substantiate the age of host deposits. The ostracod assemblage is assigned to the Macrodentina (Polydentina) subtriangularis Beds established on the Volga River left bank in deposits corresponding to the ammonite zones Panderi and Virgatus assigned to the middle Volgian substage. On the basis of ostracods, the warm-water well-aerating environment of the upper sublittoral (as deep as 50 m) was reconstructed.

Keywords: calcareous nannoplankton, foraminifers, ostracods, Volgian Stage, Loino Section, Kirov oblast

DOI: 10.1134/S086959381702006X

READ IT HERE: https://link.springer.com/article/10.1134/S086959381702006X

Explore further

Russian Federation Placeholder
Russian Federation
Oceans and Antarctica Overlay_small _blank Placeholder
Oceans and Antarctica Overlay_small _blank
Read more about / Russian Federation
Read more about / Europe
Read more about / Cretaceous
Read more about / Mesozoic
Read more about / Micropaleontology
Read more about / Today in Publishing

Browse through Time

Lurdes Fonseca

Assistant Professor and Researcher at University of Lisbon
Sociologist (PhD), Paleontologist (Researcher in Micropaleontology), Majors in Sociology and Biology, Minor in Geology. Main interests in Paleontology: Microfossils, Molecular fossils, Paleobiology and Paleoecology. (read more about me)