Details Details PDF BIBTEX RIS Title Ammonites of the Pachydiscus neubergicus group from the mid-Maastrichtian chalk of Denmark: alternative taxonomic interpretations Journal title Acta Geologica Polonica Yearbook 2026 Volume vol. 76 Issue No 1 Authors Machalski, Marcin ; Owocki, Krzysztof ; Rasmussen, Jan Audun ; Madsen, Henrik Affiliation Machalski, Marcin : Institute of Paleobiology, Polish Academy of Sciences, Twarda 51/55, 00-818 Warszawa, Poland ; Owocki, Krzysztof : Institute of Paleobiology, Polish Academy of Sciences, Twarda 51/55, 00-818 Warszawa, Poland ; Rasmussen, Jan Audun : Fossil and Mo-Clay Museum, Museum Mors, Skarrehagevej 8, DK-7900 Nykøbing Mors, Denmark ; Madsen, Henrik : Fossil and Mo-Clay Museum, Museum Mors, Skarrehagevej 8, DK-7900 Nykøbing Mors, Denmark Keywords Cephalopoda ; Ammonoidea ; Cretaceous ; white chalk Divisions of PAS Nauki o Ziemi Coverage e70 Publisher Komitet Nauk Geologicznych PAN ; Wydział Geologii UW Date 13.03.2026 Type Article Identifier DOI: 10.24425/agp.2026.158184