Pachydiscus (Pachydiscus) ootacodensis Stolickzka 1865 (ammonite)

Cephalopoda - Ammonitida - Pachydiscidae

Alternative combinations: Ammonites ootacodensis, Parapachydiscus ootacodensis

Synonym: Pachydiscus (Pachydiscus) hornbyense Jones 1963

Belongs to Pachydiscus (Pachydiscus) according to C. E. Macellari 1986

See also Anderson and Hanna 1935 and Jones 1963

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) haldemsis, Pachydiscus (Pachydiscus) hazzardi, Pachydiscus (Pachydiscus) jacquoti, Pachydiscus (Pachydiscus) jeani, Pachydiscus (Pachydiscus) kamishakensis, Pachydiscus (Pachydiscus) launayi, Pachydiscus (Pachydiscus) noetlingi, Pachydiscus (Pachydiscus) oldhami, 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 88.6

Distribution:

• Cretaceous of Antarctica (5 collections), United States (8: Alaska, California)

Total: 13 collections each including a single occurrence

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Specimen images are retrieved through the ePANDDA API.


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