Petaloconchus (Petaloconchus) Lea 1843 (worm shell)
Gastropoda - Sorbeoconcha - Vermetidae
Parent taxon: Petaloconchus according to Skoglund 2002
Sister taxa: Petaloconchus compactus, Petaloconchus complicatus, Petaloconchus domingensis, Petaloconchus floridanus, Petaloconchus glomeratus, Petaloconchus intortus, Petaloconchus laddfranklinae, Petaloconchus macrophragma, Petaloconchus mcgintyi, Petaloconchus nigricans, Petaloconchus sculpturatus, Petaloconchus varians
Subtaxa: none
Ecology: stationary epifaunal suspension feeder
Distribution:
• Quaternary of Mexico (2 collections), United States (4: California, South Carolina)
• Pliocene of United States (3: Florida, Virginia)
Total: 9 collections each including a single occurrence