Cephalopoda - Ammonitida - Pachydiscidae
Alternative combination: Pachydiscus (Pachydiscus) subcompressus
Synonyms: Joaquinites fascicostatum Anderson 1958, Joaquinites fascicostatus Anderson 1958
Belongs to Pachydiscus according to Y. Shigeta and H. Maeda 2023
See also Anderson 1958, Matsumoto 1959 and Morozumi 1985
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 peramplus, Pachydiscus perfidus, Pachydiscus precolligatus, Pachydiscus riccardi, Pachydiscus stallauensis, Pachydiscus steinmanni, Pachydiscus subrobustus, Parapachydiscus bruneti, Parapachydiscus arionis, Parapachydiscus diabloensis, Pachydiscus (Parapachydiscus) woodringi, Parapachydiscus hermes, Parapachydiscus californicus, Parapachydiscus orpheus, Parapachydiscus cortinaensis, Parapachydiscus parahybensis, Parapachydiscus hera, Pachydiscus (Parapachydiscus) gardneri, Parapachydiscus gettyi, Parapachydiscus euzebioi, Parapachydiscus psyche, Parapachydiscus brasiliensis, Parapachydiscus albuquerquei, Parapachydiscus abbotti, Parapachydiscus stanislausensis, Parapachydiscus williamsoni, Parapachydiscus oceanus, Parapachydiscus endymion, Parapachydiscus poseidon, Parapachydiscus sumneri, Parapachydiscus reedsi, Parapachydiscus athena, Parapachydiscus perseus, Parapachydiscus henleyensis, Parapachydiscus eurydice
Ecology: fast-moving nektonic carnivore
Average measurements (in mm): shell diameter 114.1
Distribution:
• Cretaceous of Japan (1 collection), the Russian Federation (9), United States (4: California)
Total: 14 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.