University of Mining and Geology, Studentski Grad, Prof. Boyan Kamenov Str., 1700 Sofia, Bulgaria
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University of Mining and Geology, Studentski Grad, Prof. Boyan Kamenov Str., 1700 Sofia, Bulgaria; Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria
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Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria
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University of Mining and Geology, Studentski Grad, Prof. Boyan Kamenov Str., 1700 Sofia, Bulgaria
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University of Mining and Geology, Studentski Grad, Prof. Boyan Kamenov Str., 1700 Sofia, Bulgaria
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University of Mining and Geology, Studentski Grad, Prof. Boyan Kamenov Str., 1700 Sofia, Bulgaria
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University of Mining and Geology, Studentski Grad, Prof. Boyan Kamenov Str., 1700 Sofia, Bulgaria
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University of Mining and Geology, Studentski Grad, Prof, Boyan Kamenov Str., 1700 Sofia, Bulgaria
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University of Mining and Geology, Studentski Grad, Prof, Boyan Kamenov Str., 1700 Sofia, Bulgaria
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University of Mining and Geology, Studentski Grad, Prof. Boyan Kamenov Str., 1700 Sofia, Bulgaria; Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria
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University of Mining and Geology, Studentski Grad, Prof. Boyan Kamenov Str., 1700 Sofia, Bulgaria
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Instituto de Geociencias CSIC-UCM, Severo Ochoa 7, 28040 Madrid, Spain
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Área de Paleontología GEODESPAL, Facultad de Ciencias Geológicas UCM, José Antonio Novais 12, 28040 Madrid, Spain
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Departamento de Ciências da Terra, Centro de Geociências, Universidade de Coimbra, Rua Sílvio Lima, 3030-790 Coimbra, Portugal
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Institute of Geology of the Czech Academy of Sciences, Rozvojová 269, 165 00 Praha 6, Czech Republic
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Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Modena e Reggio Emilia, Via Campi 103, I-41125 Modena, Italy
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Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Modena e Reggio Emilia, Via Campi 103, I-41125 Modena, Italy
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Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Modena e Reggio Emilia, Via Campi 103, I-41125 Modena, Italy
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Dipartimento di Matematica, Informatica e Geoscienze, Università degli Studi di Trieste, Via Weiss 2, I-34128 Trieste, Italy
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Dipartimento di Matematica, Informatica e Geoscienze, Università degli Studi di Trieste, Via Weiss 2, I-34128 Trieste, Italy
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Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria
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Geological Survey of Canada, 303–33rd Street N.W., Calgary, Alberta T2L 2A7, Canada
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Institute of Geology, Subdivision of the Ufa Federal Research Centre of the Russian Academy of Sciences (IG UFRC RAS), 16/2 Karl Marx Str., 450000 Ufa, Russia
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Geological Survey of Canada, 303–33rd Street N.W., Calgary, Alberta T2L 2A7, Canada
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Satbayev University, Satbayev 22, Almaty, Kazakhstan
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Natural History Museum, London, SW7 5BD, UK
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Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria
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Senckenberg Research Institute and Natural History Museum, Senckenberganlage 25, 60325 Frankfurt am Main, Germany
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School of Ocean and Earth Science, University of Southampton, National Oceanography Centre, Waterfront Campus, Southampton, UK, SO14 3ZH
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Department of Organismal Biology, Uppsala University, Norbyvägen 18A, SE-752 36, Uppsala, Sweden
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Department of Organismal Biology, Uppsala University, Norbyvägen 18A, SE-752 36, Uppsala, Sweden
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Department of Organismal Biology, Uppsala University, Norbyvägen 18A, SE-752 36, Uppsala, Sweden
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Albany Museum, Grahamstown, Province of the Eastern Cape, Republic of South Africa
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Department of Geological Sciences, San Diego State University, 5500 Campanile Drive, San Diego, CA 92182, USA
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Department of Organismal Biology, Uppsala University, Norbyvägen 18A, SE-752 36, Uppsala, Sweden
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