Cephalopoda - Ammonitida - Pachydiscidae
Alternative combinations: Ammonites haldemsis, Pachydiscus haldemsis
Synonyms: Ammonites auritocostatus Schlüter 1872, Pachydiscus kaliszanensis Nowak 1913, Pachydiscus koeneni de Grossouvre 1894
Belongs to Pachydiscus (Pachydiscus) according to B. Niebuhr et al. 2016
See also Arkadiev et al. 2000, Courville and Odin 2001 and Kennedy 1986
Sister taxa: Pachydiscus (Pachydiscus) arkansanus, Pachydiscus (Pachydiscus) australis, Pachydiscus (Pachydiscus) awajiensis, Pachydiscus (Pachydiscus) cayeuxi, Pachydiscus (Pachydiscus) complanatus, Pachydiscus (Pachydiscus) dossantosi, Pachydiscus (Pachydiscus) duelmensis, Pachydiscus (Pachydiscus) egertoni, Pachydiscus (Pachydiscus) gutierrezi, Pachydiscus (Pachydiscus) hazzardi, Pachydiscus (Pachydiscus) jacquoti, Pachydiscus (Pachydiscus) jeani, Pachydiscus (Pachydiscus) kamishakensis, Pachydiscus (Pachydiscus) neubergicus, Pachydiscus (Pachydiscus) noetlingi, Pachydiscus (Pachydiscus) oldhami, Pachydiscus (Pachydiscus) ootacodensis, Pachydiscus (Pachydiscus) paulsoni, Pachydiscus (Pachydiscus) rogeri, Pachydiscus (Pachydiscus) ultimus, Pachydiscus (Pachydiscus) yama
Average measurements (in mm): shell diameter 226.2
Distribution:
• Cretaceous of Austria (1 collection), France (8), Germany (4), Iran (2), Turkey (2), Ukraine (1)
Total: 18 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.