Cephalopoda - Multiceratoidea - Cyclostomiceratidae
Synonym: Amphoroceras Ulrich and Foerste 1936
Parent taxon: Cyclostomiceratidae according to B. Kröger and D. H. Evans 2011
See also Crick 1981, King 1998, Kröger and Landing 2009, Teichert et al. 1964 and Ulrich et al. 1943
Sister taxa: Eocyclostomiceras, Microstomiceras, Paracyclostomiceras, Pictetoceras
Subtaxa: Cyclostomiceras cassinense Cyclostomiceras depressius Cyclostomiceras depressum Cyclostomiceras minimum Cyclostomiceras thorali Cyclostomiceras vasiforme
Type: Gomphoceras cassinense
Ecology: fast-moving nektonic carnivore
Distribution:
• Arenig of Argentina (1 collection), China (1)
• Ordovician of Canada (1: Quebec), France (1), United States (8: Arkansas, Georgia, New York, Vermont)
• Tremadoc of China (2)
Total: 14 collections including 15 occurrences
Specimen images are retrieved through the ePANDDA API.
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