Open AccessAmmonites from the Maastrichtian White Chalk of Denmark
Author(s) -
Tove Birkelund
Publication year - 1993
Publication title -
bulletin of the geological society of denmark
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.674
H-Index - 28
eISSN - 2245-7070
pISSN - 0011-6297
DOI - 10.37570/bgsd-1994-40-02
Subject(s) - paleontology , ammonite , taxon , geology , single specimen , biology , cretaceous
Nineteen ammonite species are described or recorded from the Maastrichtian White Chalk of Denmark: Hypophyl/oceras (Neophylloceras) surya (Forbes, 1846), H. (N.) velledaeforme (Schliiter, 1872), Anagaudryceras luenebergense (Schliiter, 1872), Saghalinites wrighti Birkelund, 1965, Saghalinites n. sp., Pachydiscus (Pachydiscus) neubergicus (Hauer, 1858), Anapachydiscus aff. fresvillensis (Seunes, 1890), Glyptoxoceras cf. tenuisulcatum(Forbes, 1846), Diplomoceras cylindraceum (Defrance, 1816), P. (Phyl/optychoceras) sp., Baculites knorrianus Desmarest, 1817, B. vertebra/is Lamarck, 1801, Baculites species 1, 2 and 3, Acanthoscaphites tridens (Kaer, 1848), A. varians (Lopuski, 1911), Hop/oscaphites constrictus (J. Sowerby, 1817) and H. tenuistriatus (Kner, 1848), and their ranges documented in terms of existing brachiopod and belemnite zonations. Seven taxa, representing the Phylloceratina, Lytoceratina, Ammonitina and Ancyloceratina, extend to the high Maastrichtian at Stevns Klint. There are no indigenous Danian ammonites; specimens found in the basal Danian are derived from the underlying Maastrichtian.