†Polyptychoceras Yabe 1927 (ammonite)
Click image to enlarge. Click to access iDigBio record.
Cephalopoda - Ammonitida - Diplomoceratidae
Parent taxon: Polyptychoceratinae according to C. Ifrim et al. 2013
See also Kennedy and Summesberger 1999, Matsumoto 1984 and Sepkoski 2002
Sister taxa: Oxybeloceras, Phylloptychoceras, Pseudoxybeloceras, Solenoceras, Spiroxybeloceras
Subtaxa: Polyptychoceras (Polyptychoceras) Polyptychoceras (Subptychoceras) Polyptychoceras pseudogaultinum
Ecology: fast-moving nektonic carnivore
Distribution:
• Cretaceous of Angola (2 collections), Antarctica (7), Argentina (1), Austria (1), Canada (1: British Columbia), Japan (47), Mexico (1), the Russian Federation (4), United States (1: California)
Total: 65 collections including 74 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.