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1.- CORRELATION OF CALCAREOUS NANNOFOSSIL ZONES TO THE LOCAL FIRST OCCURRENCE OF PACHYDISCUS NEUBERGICUS (VON HAUER, 1858) (AMMONOIDEA) IN EUROPEAN UPPER CRETACEOUS SECTIONS NETHERLANDS INSTITUTE OF APPLIED GEOSCIENCE TNO/ROYAL GEOLOGICAL AND MINING SOCIETY OF THE NETHERLAN, 2003 THE 150TH ANNIVERSARY OF THE MAASTRICHTIAN STAGE; A CELEBRATORY CONFERENCE Ver registro
2.- THE CONIACIAN-SANTONIAN BOUNDARY IN NORTHERN SPAIN; THE OLAZAGUTIA SECTION ALFA; BRATISLAVA; SVK; SLOVAK REPUBLIC, 1997 FINAL MEETING OF THE PROJECT NO. 362 "TETHYAN/BOREAL CRETACEOUS CORRELATION" Ver registro
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