Cephalopoda - Ammonitida - Pachydiscidae
Alternative spelling: Neodesmoceras
Parent taxon: Pachydiscus according to W. J. Kennedy and W.A. Cobban 1996
See also Jones 1963, Kennedy 1986, Kennedy and Henderson 1992 and Landman et al. 2007
Sister taxa: 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 peramplus, Pachydiscus perfidus, Pachydiscus precolligatus, Pachydiscus riccardi, Pachydiscus stallauensis, Pachydiscus steinmanni, Pachydiscus subcompressus, Pachydiscus subrobustus, Parapachydiscus orpheus, Parapachydiscus hera, Pachydiscus (Parapachydiscus) woodringi, Parapachydiscus sumneri, Parapachydiscus euzebioi, Parapachydiscus endymion, Parapachydiscus oceanus, Parapachydiscus reedsi, Parapachydiscus abbotti, Parapachydiscus brasiliensis, Parapachydiscus henleyensis, Parapachydiscus californicus, Parapachydiscus stanislausensis, Parapachydiscus parahybensis, Parapachydiscus hermes, Parapachydiscus athena, Parapachydiscus cortinaensis, Parapachydiscus albuquerquei, Parapachydiscus perseus, Parapachydiscus diabloensis, Parapachydiscus gettyi, Parapachydiscus poseidon, Parapachydiscus eurydice, Pachydiscus (Parapachydiscus) gardneri, Parapachydiscus psyche, Parapachydiscus williamsoni, Parapachydiscus arionis, Parapachydiscus bruneti
Subtaxa: Neodesmoceras catarinae Pachydiscus (Neodesmoceras) mokotibensis Pachydiscus (Neodesmoceras) obsoletiformis Pachydiscus (Neodesmoceras) princeps Pachydiscus (Neodesmoceras) soma
Ecology: fast-moving nektonic carnivore
Distribution:
• Cretaceous to Paleogene of United States (1: New Jersey collection)
• Cretaceous of France (1), India (1), Mexico (5), United States (12: Alaska, California)
Total: 20 collections each including a single occurrence