Gastropoda - Neogastropoda - Buccinidae
Alternative spellings: Chrysodomus (Sulcosipho), Sulcosipho
Parent taxon: Neptunea according to U. S. Grant, IV and H. R. Gale 1931
See also Hendy 2020, Sepkoski 2002 and Waterfall 1929
Sister taxa: Neptunea (Neptunea), Neptunea (Trophonopsis), Neptunea alaquaensis, Neptunea antarctocosta, Neptunea cretacea, Neptunea despecta, Neptunea diminuta, Neptunea gracilis, Neptunea humboldtiana, Neptunea ithia, Neptunea lyrata, Neptunea modestoidea, Neptunea stonei, Chrysodomus patuxentensis, Chrysodomus cierboensis, Chrysodomus hannibali, Chrysodomus pabloensis, Chrysodomus ruckmani, Chrysodomus chikuzenensis, Chrysodomus diabloensis, Chrysodomus (Sipho), Chrysodomus buwaldi, Chrysodomus pulcherrimus, Chrysodomus clallamensis, Chrysodomus martini, Chrysodomus lincolnensis, Chrysodomus burroensis, Chrysodomus altispiratus, Chrysodomus packardi, Chrysodomus asakuraensis
Subtaxa: Neptunea (Sulcosipho) angulata Neptunea (Sulcosipho) eatoni Neptunea (Sulcosipho) lawsoni Neptunea (Sulcosipho) magna Neptunea (Sulcosipho) postplanatus Neptunea (Sulcosipho) scotiaensis Neptunea (Sulcosipho) tabulata
Ecology: epifaunal carnivore
Distribution:
• Quaternary of United States (37: California, Oregon collections)
• Pliocene to Pleistocene of United States (4: California, Oregon)
• Pliocene of Belgium (2), the United Kingdom (1), United States (8: California, Oregon)
• Miocene to Pliocene of United States (1: California)
• Miocene of United States (3: Alaska, California, Washington)
Total: 56 collections including 59 occurrences