The Global Boundary Stratotype Section and Point ( GSSP ) of the Toarcian-Aalenian Boundary ( Lower-Middle Jurassic )

Abstract

(GSSP) for the Aalenian Stage, formally defined at the base of bed FZ107 in the Fuentelsaz section, Castilian Branch of the Iberian Range (Spain), has been ratified by the IUGS. Multidisciplinary biostratigraphical data, based on ammonites, brachiopods, ostracods, bivalves, foraminifera, calcareous nannofossils assemblages and palynomorphs, assure worldwide… (More)

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