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 orpheus, Parapachydiscus euzebioi, Parapachydiscus psyche, Parapachydiscus williamsoni, Parapachydiscus albuquerquei, Parapachydiscus athena, Parapachydiscus cortinaensis, Pachydiscus (Parapachydiscus) woodringi, Parapachydiscus endymion, Parapachydiscus eurydice, Parapachydiscus diabloensis, Parapachydiscus oceanus, Parapachydiscus henleyensis, Parapachydiscus gettyi, Parapachydiscus stanislausensis, Parapachydiscus abbotti, Pachydiscus (Parapachydiscus) gardneri, Parapachydiscus reedsi, Parapachydiscus poseidon, Parapachydiscus perseus, Parapachydiscus hermes, Parapachydiscus brasiliensis, Parapachydiscus arionis, Parapachydiscus hera, Parapachydiscus parahybensis, Parapachydiscus californicus, Parapachydiscus bruneti, Parapachydiscus sumneri

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.