Pachydiscus (Pachydiscus) haldemsis Schluter 1867 (ammonite)

Cephalopoda - Ammonitida - Pachydiscidae

Alternative combinations: Ammonites haldemsis, Pachydiscus haldemsis

Synonyms: Ammonites auritocostatus Schl├╝ter 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 and Kennedy 1986

Sister taxa: Pachydiscus (Pachydiscus) arkansanus, Pachydiscus (Pachydiscus) armenicus, Pachydiscus (Pachydiscus) australis, Pachydiscus (Pachydiscus) awajiensis, Pachydiscus (Pachydiscus) cayeuxi, Pachydiscus (Pachydiscus) colligatus, 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) launayi, Pachydiscus (Pachydiscus) noetlingi, Pachydiscus (Pachydiscus) oldhami, Pachydiscus (Pachydiscus) ootacodensis, Pachydiscus (Pachydiscus) paulsoni, Pachydiscus (Pachydiscus) rogeri, Pachydiscus (Pachydiscus) subcompressus, Pachydiscus (Pachydiscus) subrobustus, Pachydiscus (Pachydiscus) ultimus, Pachydiscus (Pachydiscus) yama

Ecology: fast-moving nektonic carnivore

Average measurements (in mm): shell diameter 226.2

Distribution:

• Cretaceous of Austria (1 collection), France (3), Iran (2), Turkey (2), Ukraine (1)

Total: 9 collections each including a single occurrence

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Specimen images are retrieved through the ePANDDA API.


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