Gastropoda - Neogastropoda - Volutidae
Alternative spelling: Psephaea
Synonyms: Fulgoraria (Miopleiona) Dall 1907, Miopleiona Dall 1907, Musashia (Miopleiona) Dall 1907, Psephaea (Miopleiona) Dall 1907
Parent taxon: Fulgoraria according to J. D. Mount 1976
See also Addicott 1970, Durham 1944, Grant, IV and Gale 1931, Moore 1984, Nagao 1928, Oleinik and Marincovich 2003 and Sepkoski 2002
Sister taxa: Fulgoraria (Kurodina), Fulgoraria (Musashia), Fulgoraria (Saotomea), Fulgoraria chinensis, Fulgoraria oregonensis
Subtaxa: Fulgoraria (Psephaea) megaspira Fulgoraria (Psephaea) zinsmeisteri Psephaea (Miopleiona) indurata Psephaea (Miopleiona) weaveri Psephaea corrugata Psephaea prevostiana
Distribution:
• Miocene of United States (5: California, Oregon, Washington collections)
• Oligocene to Miocene of United States (1: Alaska)
• Oligocene of Japan (1), United States (10: Alaska, Washington)
• Eocene of the Russian Federation (2), United States (1: California)
• Paleocene of Greenland (1), United States (4: California)
Total: 25 collections including 26 occurrences