2017-01-24
A new paper just appear in the journal „Newsletters on Stratigraphy”. This is nice contribution to worldwide palaeotemperatures and climate regimes as well as to local stratigraphy from our Sigitas Radzevičius, Andrej Spiridonov, Antanas Brazauskas, Darja Dankina, Algirdas Rimkus, Giedrius Bičkauskas ir Kaminskas, Donatas together with Tõnu Meidla and Leho Ainsaar from Tartu University (Estonia).
Great job, guys!
Moreover, the cover page of volume 49 of the journal is decorated with „model „fossils from the paper
Impact factor of the journal for 2014: 3.200
Integrated stratigraphy, conodont turnover and palaeoenvironments of the upper Wenlock and Ludlow in the shallow marine succession of the Vilkaviškis-134 core (Lithuania)
Abstract
New data on the Upper Homerian and Ludlow (Silurian) stratigraphy of the shallow water sedimentary and biotic succession of the Lithuanian part of the Silurian Baltic basin are presented here based on detailed analysis of the Vilkaviškis-134 core. Four formations: the Riga, Gėluva and Širvinta formations of Wenlock age and the Neris Formation of Ludlow age were distinguished on the basis of detailed examination of polished rock slabs and natural gamma logs. According to the distribution of stratigraphically restricted conodonts and graptolites, as well as δ13 C variations, four regional stages were established: the Jaagarahu, Gėluva, Dubysa and Pagėgiai. A heuristic „delay phase” evolutionary-palaeobiogeographic model for a global turnover pulse is proposed. The model is based on analysis of the temporal distribution of the conodont species. Palaeotemperatures and climate regimes were determined using δ18 O and Al/Ti oxide ratio data.
The paper can be found here