LINGULIFORM MICROBRACHIOPODS FROM LAS AGUADITAS AND LAS CHACRITAS FORMATIONS (MIDDLE-UPPER ORDOVICIAN) OF ARGENTINE PRECORDILLERA by FERNANDO JULIÁN LAVIÉ, FERNANDA SERRA, NICOLÁS ALEXIS FELTES

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New biostratigraphically important chitinozoans from the Kukruse Regional Stage, Upper Ordovician of Baltoscandia by Jaak Nõlvak, Garmen Bauert

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New contributions to the Ordovician biostratigraphy of the Western Precordillera, Argentina by Fernando E. Lopez, Gladys Ortega, Guillermo L. Albanesi, Aldo L. Banchig

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Latest Sandbian brachiopods and chitinozoan biostratigraphy in North Estonia by Linda Hints, Jaak Nõlvak

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Alleged cnidarian Sphenothallus in the Late Ordovician of Baltica, its mineral composition and microstructure by Olev Vinn, Kalle Kirsimäe

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The tarphyceratid cephalopod Trocholites in the Middle–Upper Ordovician of the Prague Basin —the Baltican element in peri-Gondwana by Martina Aubrechtová, Vojtěch Turek, Štěpán Manda

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