Pachydiscus (Pachydiscus) Zittel 1884 (ammonite)

Cephalopoda - Ammonitida - Pachydiscidae

Parent taxon: Pachydiscus according to J. W. M. Jagt et al. 2019

See also Cobban and Kennedy 1992, Henderson 1970, Kennedy 1986, Kennedy 1993, Kennedy 1995, Kennedy 1995, Kennedy 1999, Kennedy and Bilotte 1995, Kennedy and Cobban 1993, Kennedy and Cobban 1993, Kennedy and Cobban 1994, Kennedy and Cobban 1997, Kennedy and Kaplan 1995, Kennedy and Summesberger 1986, Kennedy and Summesberger 1987, Macellari 1986, Morozumi 1985, Niebuhr et al. 2016 and Ward and Kennedy 1993

Sister taxa: Pachydiscus (Neodesmoceras), Pachydiscus ashlandicus, Pachydiscus averilli, Pachydiscus epiplectus, Pachydiscus excelsus, Pachydiscus flexuosus, Pachydiscus gollevillensis, Pachydiscus hauthali, Pachydiscus henleyensis, Pachydiscus levyi, Pachydiscus merriami, Pachydiscus naumanni, Pachydiscus neubergicus, Pachydiscus oregonensis, Pachydiscus patagonicus, Pachydiscus peramplus, Pachydiscus precolligatus, Pachydiscus riccardi, Pachydiscus stallauensis, Pachydiscus steinmanni, Parapachydiscus arionis, Parapachydiscus coalingensis, Parapachydiscus oceanus, Parapachydiscus eurydice, Pachydiscus (Parapachydiscus) gardneri, Parapachydiscus hera, Parapachydiscus hermes, Parapachydiscus panochensis, Parapachydiscus parahybensis, Parapachydiscus albuquerquei, Pachydiscus (Parapachydiscus) woodringi, Parapachydiscus gabbi, Parapachydiscus reedsi, Parapachydiscus stanislausensis, Parapachydiscus poseidon, Parapachydiscus brasiliensis, Parapachydiscus psyche, Parapachydiscus williamsoni, Parapachydiscus orpheus, Parapachydiscus peninsularis, Parapachydiscus perseus, Parapachydiscus endymion, Parapachydiscus bruneti, Parapachydiscus euzebioi, Parapachydiscus cortinaensis, Parapachydiscus gettyi, Parapachydiscus catarinae, Parapachydiscus sumneri, Parapachydiscus athena, Parapachydiscus abbotti, Parapachydiscus bidwelli, Joaquinites fascicostatum

Subtaxa: 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) ootacodensis Pachydiscus (Pachydiscus) paulsoni Pachydiscus (Pachydiscus) rogeri Pachydiscus (Pachydiscus) subcompressus Pachydiscus (Pachydiscus) subrobustus Pachydiscus (Pachydiscus) ultimus Pachydiscus (Pachydiscus) yama

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Ecology: fast-moving nektonic carnivore

Distribution:

• Cretaceous of Antarctica (21 collections), Australia (22), Austria (1), Belgium (2), Brazil (1), Bulgaria (1), Canada (1: British Columbia), Chile (5), France (31), Germany (10), India (1), Iran (2), Japan (4), Jordan (1), Mexico (1), the Netherlands (1), Nigeria (2), Oman (3), Romania (1), South Africa (1), Spain (2), Turkey (2), Ukraine (1), the United Arab Emirates (1), United States (43: Alaska, Arkansas, California, Delaware, New Jersey, Texas)

Total: 161 collections including 182 occurrences

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