Natuurhistorisch Maandblad

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Natuurhistorisch Genootschap Limburg

J. Hofker. (1961). Foraminifera from the Cretaceous of South Limburg, Netherlands: LV. The pore-increase of Gavetinella danica (Brotzen) in Danian, Lower Paleocene and Montian in Denmark and in Holland-Belgium, showing the Maestrichtian of Dumont's being of Danian age. Natuurhistorisch Maandblad, 50(9/10), 100–102.