The early gephuroceratid ammonoids from the Roteisenstein Formation of Dillenburg (Cephalopoda, Ammonoidea)

  • The ammonoids of the suborder Gephuroceratina from the Roteisenstein (Red Ironstone) Formation of the area around Dillenburg (eastern Rhenish Mountains) are revised, mainly based on historical collections stored in the Museum für Naturkunde, Berlin. The new species Ponticeras materni sp. nov. is described and the species Pseudoprobeloceras pernai (Wedekind, 1918), Pseudoprobeloceras applanatum (Wedekind, 1918), Ponticeras aequabile (Beyrich, 1837), Darkaoceras galeatum (Matern, 1931), Taouzites acutus (Matern, 1931), Koenenites lamellosus (Sandberger & Sandberger, 1851), Acanthoclymenia forcipifera (Sandberger & Sandberger, 1851) and Acanthoclymenia planorbis (Sandberger & Sandberger, 1851) are revised. The stratigraphic distribution of the genera is discussed; they are assigned to three assemblages: (1) Pseudoprobeloceras pernai Zone (latest Givetian; genera Pseudoprobeloceras, Ponticeras, Darkaoceras and Taouzites), (2) Koenenites lamellosus Zone (early Frasnian, containing Koenenites lamellosus and Acanthoclymenia forcipifera) and (3) Mesobeloceras kayseri Zone (middle Frasnian, containing Acanthoclymenia planorbis).

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Author:Dieter KornORCiDGND, Jürgen BockwinkelGND
URN:urn:nbn:de:hebis:30:3-681304
DOI:https://doi.org/10.5852/ejt.2022.823.1811
ISSN:2118-9773
Parent Title (German):European journal of taxonomy
Series (Serial Number):European journal of taxonomy : EJT (823:10-47)
Publisher:Muséum National d'Histoire Naturelle
Place of publication:Paris
Document Type:Article
Language:English
Date of Publication (online):2022/06/08
Date of first Publication:2022/06/08
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2022/06/08
Tag:Ammonoidea; Late Devonian; Middle Devonian; Rhenish Mountains; taxonomy
Volume:2022
Issue:823
Page Number:38
First Page:10
Last Page:47
HeBIS-PPN:503955450
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 59 Tiere (Zoologie) / 590 Tiere (Zoologie)
Sammlungen:Sammlung Biologie / Sondersammelgebiets-Volltexte
:urn:nbn:de:hebis:30:3-257882
Licence (German):License LogoCreative Commons - Namensnennung 4.0