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New correlations of Telychian (Silurian) bentonites in Estonia
bentonite K-bentonite Telychian sanidine correlation
2009/10/22
Seventy-seven Telychian bentonite samples from six drill-core sections were correlated on the basis of their sanidine composition. In total, bentonites from 43 volcanic eruptions, of which six are new...
Dolomitization and sedimentary cyclicity of the Ordovician,Silurian,and Devonian rocks in South Estonia
dolomitization sedimentary cyclicity diagenesis dolomite XRD porosity
2009/10/21
The distribution and composition of dolomitized rocks and stoichiometry of dolomite in southern Estonia in the Ordovician, Silurian, and Devonian were studied on the background of the facies, sediment...
Thelodonts (Agnatha) from the basal beds of the Kuressaare Stage,Ludlow,Upper Silurian of Estonia
Thelodonti Agnatha taxonomy Estonia Ludlow Silurian
2009/10/21
The thelodont Loganellia cuneata (Gross) is redescribed and new thelodont taxa Paralogania perensae sp. nov., Nethertonodus laadjalaensis sp. nov., and Longodus acicularis gen. et sp. nov. are establi...
Recent developments in the Upper Ordovician and lower Silurian conodont biostratigraphy in Estonia
conodonts biostratigraphy Upper Ordovician Llandovery Wenlock Estonia
2009/10/21
The current state of and the latest developments in the conodont-based biostratigraphical studies of Upper Ordovician and lower Silurian strata in Estonia are discussed. An updated conodont zonation i...
Platystrophia (Orthida) and new related Ordovician and Early Silurian brachiopod genera
Rhynchonelliformea Platystrophiidae Baltica Avalonia Laurentia new taxa
2009/10/21
More than 150 Ordovician and Early Silurian brachiopod species have been assigned to the genus Platystrophia King,1850 mainly on the basis of their Spirifer-like shell exteriors. King’s concept o...
Morphological variation of the tabulate coral Paleofavosites cf. collatatus Klaamann,1961 from the Silurian of the Bagovichka River localities,Podolia(Ukraine)
Silurian Ludlow Podolia Tabulata morphological variation
2009/10/21
Paleofavosites cf. collatatus Klaamann occurs abundantly in marls and bioherms of the Muksha Member of the Bagovitsa Formation (Upper Silurian, Ludlow). The morphological variation of this species ide...
Three global carbon isotope shifts in the Silurian of Podolia (Ukraine):stratigraphical implications
carbon isotopes correlation Podolia Silurian stratigraphy Ukraine
2009/10/21
Podolia is a classical Silurian area in the southwestern part of the Ukraine. Shallow to open shelf rocks cropping out there are usually, except for a few dolomitic horizons, highly fossiliferous and ...
Lower Silurian biostratigraphy of the Viirelaid core,western Estonia
conodonts chitinozoans ostracods scolecodonts brachiopods biostratigraphy
2009/10/21
The distribution of five groups of fossils in the upper Llandovery (Telychian) and Wenlock of the Viirelaid core section, Estonia, is presented and discussed in terms of their biozones (conodonts and ...
Multiply remagnetized Silurian carbonate sequence in Estonia
remagnetization rock and mineral magnetism Baltica
2009/10/21
Palaeomagnetic studies were carried out on Silurian sedimentary rocks of Estonia. The studied sequence (126 samples from 4 localities) is composed of Silurian lime- and dolostones of Llandovery and We...
Conodont dating of some Telychian (Silurian) sections in Estonia
conodonts stratigraphy Telychian Sheinwoodian Silurian Estonia
2009/10/21
Several Telychian–Sheinwoodian strata exposed in Estonia are precisely dated using conodont biostratigraphy. The beds in the Valgu-1 section correspond to the uppermost Distomodus staurognathoide...
Late Silurian-Early Devonian tessellated heterostracan Oniscolepis Pander,1856 from the East Baltic and North Timan
Silurian Devonian East Baltic North Timan Heterostraci exoskeletal units
2009/10/21
Pander (1856, Monographie der fossilen Fische der silurischen Systems der Russisch–Baltischen Gouvernements.Obersilurische Fische. Buchdruckerei Kaiserlichen Akademie des Wissenschaften, St. Pete...
Thallophytic algal flora from a new Silurian Lagerstätte
Silurian Konservat-Lagerstä tte thallophytic algae Estonia
2009/10/21
Algae have always been the most diverse and numerous eukaryotic autotrophs in marine ecosystems. Both fossil and molecular data point to an early Proterozoic origin for algae. Although known for their...
The worm endosymbionts in tabulate corals from the Silurian of Podolia,Ukraine
tabulate corals Chaetosalpinx endosymbiosis Silurian Podolia
2009/10/21
Two endosymbionts, Chaetosalpinx sibiriensis and Coralloconchus bragensis, occur in Silurian tabulate corals of Podolia. The endosymbiotic worms responsible for C. sibiriensis bioclaustrations in tabu...
Lithostratigraphy and regional significance of the Nowa Slupia Group (Upper Silurian) of the Lysogory Region (Holy Cross Mountains,Central Poland)
Lithostratigraphy Silurian Foreland basin Ł ysogóry Region Holy Cross Mountains
2009/10/20
The Ludlovian-Lochkovian succession of the Łysogóry Region of the Holy Cross Mountains (Central Poland) represents an infill of a Caledonian foreland basin situated at the SWmargin of the East Eu...
New genus of chondrichthyans from the Silurian-Devonian boundary deposits of Tuva (Russia)
Chondrichthyans Elegestolepids Silurian Devonian Tuva
2009/10/20
The scales of T.schultzei display significant morphological variation and are characterized by a very fine, comparatively wide and flat crown with longitudinal ribs and a small and short neck. The gro...