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Query: keyword: "Maastrichtian"

Author	J.W.M. Jagt
Title	Belemnitellid coleoids (Mollusca, Cephalopoda) from the type Maastrichtian, the Netherlands and Belgium
Journal	Scripta Geologica. Special Issue
Volume	08
Year	2012
Pages	93-112
ISSN	0922-4564
Keywords	Mollusca; Coleoides; Belemnitellidae; Cretaceous; Maastrichtian; type area
Abstract	Belemnitellid coleoids abound at some levels within the Gulpen and Maastricht formations in the study area, and ‘belemnite graveyards’ have long been known from the Bovenste Bos (Epen) and Slenaken-Beutenaken areas in southern Limburg, the Netherlands. Recent studies have demonstrated the presence of at least three species of the genus Belemnitella d’Orbigny, 1840, and five of Belemnella Nowak, 1913, and its subgenera Belemnella, Pachybelemnella Schulz, 1979, and Neobelemnella Naidin, 1975. Representatives of Belemnitella junior Nowak, 1913, and Belemnella (Neobelemnella) gr. kazimiroviensis (Skołozdrówna, 1932) are the only coleoids to reach the Cretaceous-Paleogene (K/Pg) boundary, and members of the latter group may even have persisted into the earliest Paleocene.
Classification	38.22 ; 42.73
Document type	article
Download paper	http://www.repository.naturalis.nl/document/455818