Cephalopoda - Ammonitida - Pachydiscidae

Alternative combination: Pachydiscus (Pachydiscus) riccardi

Full reference: C. E. Macellari. 1986. Late Campanian-Maastrichtian ammonite fauna from Seymour Island (Antarctic Peninsula). The Paleontological Society Memoir 18:1-59

Belongs to Pachydiscus according to C. P. Consoli and J. D. Stilwell 2005

See also Macellari 1986

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

Ecology: fast-moving nektonic carnivore

Average measurements (in mm): shell diameter 121.2

Distribution:

Show more details

Specimen images are retrieved through the ePANDDA API.