†Ryugasella (ammonite)
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Cephalopoda - Ammonitida - Diplomoceratidae
Parent taxon: Diplomoceratidae according to T. Matsumoto 1959
See also Sepkoski 2002
Sister taxa: Astreptoceras, Diplomoceratinae, Eudiplomoceras, Masonites, Polyptychoceratinae, Schlueterella
Subtaxa: Ryugasella ryugasensis
Ecology: fast-moving nektonic carnivore
Distribution:
• Cretaceous of Antarctica (4 collections), Canada (1: British Columbia), United States (1: California)
Total: 6 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
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