Cephalopoda - Ammonitida - Pachydiscidae

Alternative combinations: Ammonites peramplum, Neoptychites peramplus

Full reference: G. A. Mantell. 1822. The Fossils of the South Downs; or Illustrations of the Geology of Sussex 1-327

Belongs to Pachydiscus according to Stille 1904

See also Benzaggagh et al. 2017, Chancellor et al. 1994, Mantell 1822, Wilmsen and Nagm 2013, Wilmsen and Nagm 2014, Wright and Kennedy 1984 and Young 1979

Sister taxa: Pachydiscus (Neodesmoceras), Pachydiscus (Pachydiscus), Pachydiscus armenicus, Pachydiscus besairiei, Pachydiscus binodatus, Pachydiscus buckhami, Pachydiscus colligatus, Pachydiscus epiplectus, Pachydiscus excelsus, Pachydiscus flexuosus, Pachydiscus gollevillensis, Pachydiscus hauthali, Pachydiscus launayi, Pachydiscus levyi, Pachydiscus naumanni, Pachydiscus neevesi, Pachydiscus patagonicus, Pachydiscus perfidus, Pachydiscus precolligatus, Pachydiscus riccardi, Pachydiscus stallauensis, Pachydiscus steinmanni, Pachydiscus subcompressus, Pachydiscus subrobustus, Parapachydiscus euzebioi, Parapachydiscus oceanus, Parapachydiscus diabloensis, Parapachydiscus psyche, Parapachydiscus hera, Parapachydiscus endymion, Parapachydiscus parahybensis, Parapachydiscus albuquerquei, Parapachydiscus orpheus, Parapachydiscus brasiliensis, Pachydiscus (Parapachydiscus) gardneri, Parapachydiscus williamsoni, Parapachydiscus gettyi, Parapachydiscus californicus, Parapachydiscus perseus, Parapachydiscus athena, Parapachydiscus hermes, Parapachydiscus sumneri, Pachydiscus (Parapachydiscus) woodringi, Parapachydiscus henleyensis, Parapachydiscus reedsi, Parapachydiscus eurydice, Parapachydiscus bruneti, Parapachydiscus poseidon, Parapachydiscus abbotti, Parapachydiscus stanislausensis, Parapachydiscus arionis, Parapachydiscus cortinaensis

Ecology: fast-moving nektonic carnivore

Distribution: found only at Colline de Bernon, near Tresques, Unit 4 of Faraud (1934) (Cretaceous of France)

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Specimen images are retrieved through the ePANDDA API.