Pachydiscus (Pachydiscus) hazzardi Jones 1963 (ammonite)

Cephalopoda - Ammonitida - Pachydiscidae

Full reference: D. L. Jones. 1963. Upper Cretaceous (Campanian and Maestrichtian) ammonites from southern Alaska. United States Geological Survey Professional Paper 432:1-53

Belongs to Pachydiscus (Pachydiscus) according to D. L. 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) 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

Type specimen: Its type locality is JCH-1753, Kaguyak Bay, which is in a Campanian marine siliciclastic in the Kaguyak Formation of Alaska

Ecology: fast-moving nektonic carnivore

Average measurements (in mm): shell diameter 157.1

Distribution:

• Cretaceous of United States (4: Alaska collections)

Total: 4 collections each including a single occurrence

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Specimen images are retrieved through the ePANDDA API.


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