†Agasoma (Trophosycon) Cooper 1894 (true whelk)
Gastropoda - Neogastropoda - Buccinidae
Full reference: J. G. Cooper. 1894. Catalogue of Californian fossils. (Parts II, III, IV, and V). California State Mining Bureau Bulletin No. 4 1-65
Parent taxon: Agasoma according to J. G. Cooper 1894
Sister taxa: Agasoma acuminatum, Agasoma andersoni, Agasoma barkerianum
Subtaxa: none
Ecology: epifaunal carnivore
Distribution: there are no occurrences of Agasoma (Trophosycon) in the database