Latest Sandbian brachiopods and chitinozoan biostratigraphy in North Estonia [PDF]
Estonian Journal of Earth Sciences, 2023 The latest Sandbian brachiopods and chitinozoans were studied in the Kõrgessaare and Haapsalu drill cores of Estonia. The brachiopod fauna shows a gradual renewal through the Keila Regional Stage (RS), differently from the rather persistent association ...
Linda Hints, Jaak Nõlvak
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On future directions of Ordovician chitinozoan research [PDF]
Estonian Journal of Earth Sciences, 2023 Chitinozoans have been known to science for nearly a century. Due to their biostratigraphic utility, chitinozoans were intensively studied from the 1960s to the 1980s, and they have an important place in Ordovician stratigraphy nowadays, alongside ...
Yan Liang +3 more
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A new chitinozoan assemblage from the Middle Devonian Los Monos Formation (sub-Andean basin, southern Bolivia) and its biozonal implications for Western Gondwana. [PDF]
PLoS ONEChitinozoans recovered from one section of the Middle Devonian Los Monos Formation in the TCB X-1001-Tacobo borehole, sub-Andean basin of Bolivia, have been analysed.
Sonia C Camina +5 more
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Morphological variation suggests that chitinozoans may be fossils of individual microorganisms rather than metazoan eggs [PDF]
Proceedings of the Royal Society B: Biological Sciences, 2019 Wenhui Wang, Joseph Bernardo
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Early and early Middle Ordovician chitinozoans from the Baldone drill core, central Latvia [PDF]
Estonian Journal of Earth Sciences, 2022 Early and early Middle Ordovician chitinozoans are relatively poorly known in Baltoscandia, thus the understanding of the early diversification of the group, as well as its biostratigraphic utility, is limited. In this paper, we document the distribution
Jaak Nõlvak, Yan Liang, Olle Hints
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Boundary between the Porkuni and Juuru regional stages in the Neitla section, Estonia [PDF]
Estonian Journal of Earth Sciences, 2023 Conodonts and chitinozoans were studied from the Neitla section, which exposes the boundary between the Porkuni and Juuru regional stages. This level, although not proved biostratigraphically, has been traditionally considered to correspond to the ...
Peep Männik, Jaak Nõlvak
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The detailed Middle to early Late Ordovician faunal succession and δ13Ccarbon chemistry of the Kårehamn drill core, offshore eastern Öland, Sweden: implications for stratigraphy and correlation [PDF]
Estonian Journal of Earth Sciences, 2023 The Middle to lower Upper Ordovician stratigraphy of the KÃ¥rehamn core, drilled ca 7 km offshore to the east of the KÃ¥rehamn village, northeastern Ãland, is presented. The investigated core is one of four drill cores obtained during the preparation of
Svend Stouge +4 more
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Latest Ordovician age of the Spinachitina fragilis Chitinozoan Biozone in Baltoscandia [PDF]
Estonian Journal of Earth Sciences, 2023 The global Spinachitina fragilis Chitinozoan Biozone has been considered the lowermost Silurian zone in most publications. S. fragilis was first described from the Ohesaare drill core, Estonia, and utilised as a Baltic regional zonal taxon together with ...
Jaak Nõlvak, Yan Liang, Olle Hints
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Chitinozoan nomenclature and databases [PDF]
Estonian Journal of Earth Sciences, 2023 In 1930, Alfred Eisenack suggested the term âchitinozoanâ for a microfossil group that he discovered from erratic boulders on the Baltic Sea coast.
Sonia Camina +2 more
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New biostratigraphically important chitinozoans from the Kukruse Regional Stage, Upper Ordovician of Baltoscandia [PDF]
Estonian Journal of Earth Sciences, 2015 Three new chitinozoan species, Conochitina savalaensis, Conochitina viruana and Belonechitina intonsa, are described. All these species are stratigraphically restricted to the Kukruse age (lowermost Sandbian, Laufeldochitina stentor chitinozoan Zone) and
Jaak Nõlvak, Garmen Bauert
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