Pachydiscus (Pachydiscus) kamishakensis 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) hazzardi, Pachydiscus (Pachydiscus) jacquoti, Pachydiscus (Pachydiscus) jeani, 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: USNM 131193, a shell. Its type locality is USGS Loc. 16398, Matanuska Valley-Nelchina [Matanuska Fm], which is in a Campanian marine siltstone/shale in the Matanuska Formation of Alaska.

Ecology: fast-moving nektonic carnivore

Average measurements (in mm): shell diameter 150.1

Distribution:

• Cretaceous of United States (16: Alaska collections)

Total: 16 collections each including a single occurrence

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Specimen images are retrieved through the ePANDDA API.


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