Cephalopoda - Ammonitida - Oppeliidae
Parent taxon: Aconeceratinae according to W. J. Arkell et al. 1957
See also Sepkoski 2002, Whitehouse 1926 and Whitehouse 1927
Sister taxa: Aconeceras, Eofalciferella, Falciferella, Koloceras, Protaconeceras, Sinzovia, Theganoceras
Subtaxa: Sanmartinoceras fontinale Sanmartinoceras olene Sanmartinoceras patagonicum Sanmartinoceras walshense
Ecology: fast-moving nektonic carnivore
Distribution:
• Cretaceous of Antarctica (4 collections), Argentina (10), Australia (4), Chile (1), Madagascar (1), South Africa (2), South Georgia and the South Sandwich Islands (1), Svalbard and Jan Mayen (1), the United Kingdom (3), United States (1: California)
Total: 28 collections including 34 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.