Age of the Kalana Lagerstätte, early Silurian, Estonia [PDF]
Estonian Journal of Earth Sciences, 2016 The Kalana quarry in central Estonia is known for its exceptionally well-preserved non-calcified algal and other fossils. The interval with the fossil Konservat Lagerstätte in the Kalana section has previously been tentatively dated as early Aeronian ...
Peep Männik +3 more
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Silurian bentonites in Lithuania: correlations based on sanidine phenocryst composition and graptolite biozonation – interpretation of volcanic source regions [PDF]
Estonian Journal of Earth Sciences, 2014 Integrated correlation of bentonites (altered volcanic ashes) and graptolite biozonation is presented. Detailed study of two Lithuanian drill core sections extended previous knowledge of the occurrence and composition of bentonites to the south ...
Tarmo Kiipli +2 more
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First record of Telephina (Trilobita) from the Ordovician of northeastern Estonia and its stratigraphical implications [PDF]
Estonian Journal of Earth Sciences, 2011 For the first time a telephinid trilobite was recorded from the shallow-water rocks of the North Estonian Confacies Belt in the oil-shale mining area of northeast Estonia.
Helje Pärnaste, Adrian Popp
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Distribution pattern of the Ordovician black shale constrained by graptolite zonation in the western margin of the Ordos Block, North-West China [PDF]
Estonian Journal of Earth Sciences, 2023 The graptolitic shale from the late Middle to early Late Ordovician along the western margin of the Ordos Block is a good target bed for shale gas exploration.
Chuanshang Wang, Yong Hu
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The Silurian Section of the Valle syncline (Sierra Norte de Sevilla UNESCO Global Geopark, Spain) as an International Standard for Graptolite Biostratigraphy [PDF]
Geoconservation Research, 2021 The Paleozoic succession of the Sierra Norte de Sevilla UNESCO Global Geopark (Ossa Morena Zone of the Iberian Massif, SW Spain) includes a nearly complete Silurian succession, ca. 150 m thick, deposited in an outer shelf setting. In the core part of the
Juan Carlos Gutierrez-Marco +2 more
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FÓSILES: HISTORIA DE LA VIDA EN LA TIERRA
Epistemus, 2021 Por medio de los fósiles es posible conocer la historia de la vida en el pasado geológico del planeta Tierra. Es probable que la vida se originó a inicios del Precámbrico, hace más de 3800 millones de años, sin embargo, los restos fósiles más antiguos ...
Francisco Javier Cuen Romero +3 more
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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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Subway into the Ordovician (Prague Basin, Czech Republic) [PDF]
Estonian Journal of Earth Sciences, 2023 In the Late Ordovician, the Prague Basin was located at the high-latitude northwestern shelf of Gondwana. This period was characterised by profound environmental changes and ended by one of the most severe mass extinctions, which was caused by climatic ...
Jana Bruthansová +2 more
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Silurian myodocope ostracods from Poland [PDF]
Acta Palaeontologica Polonica, 2019 Newly collected material reveals that the Silurian myodocope ostracods from the Holy Cross Mountains, Poland comprise ten species (one new to science) belonging to four families: Bolbozoidae, Entomozoidae, Rhomboentomozoidae, and Cypridinidae ...
Vincent Perrier +4 more
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Running across the Silurian/Devonian Boundary along Northern Gondwana: A Conodont Perspective
Geosciences, 2022 The Global Stratotype Section and Point (GSSP) of the Silurian/Devonian boundary, Lower Devonian Series and Lochkovian Stage was formally placed in 1977 at Klonk, in the Czech Republic, at the first appearance of the graptolite Uncinatograptus uniformis ...
Annalisa Ferretti +3 more
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