Voltar
Artigo Acesso aberto Revisado por pares
BIBTEX RIS

Ammonites from the Maastrichtian White Chalk of Denmark

1993; Volume: 40; Linguagem: Inglês

10.37570/bgsd-1994-40-02

ISSN

2245-7070

Autores

Tove Birkelund,

Tópico(s)

Isotope Analysis in Ecology

Resumo

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.

Referência(s)