Gastropoda - Neogastropoda - Nassariidae
Alternative spelling: Caesia
Synonym: Zaphon
Parent taxon: Nassarius according to W. O. Addicott 1965
See also Sepkoski 2002
Sister taxa: Nassaria cornelliana, Nassarius (Alectrion), Nassarius (Arcularia), Nassarius (Catilon), Nassarius (Demondia), Nassarius (Hima), Nassarius (Hinia), Nassarius (Mirua), Nassarius (Nanarius), Nassarius (Nassarius), Nassarius (Niotha), Nassarius (Plicarcularia), Nassarius (Schizopyga), Nassarius (Tritiaria), Nassarius (Tritonella), Nassarius (Uzita), Nassarius (Zeuxis), Nassarius albescens, Nassarius antillarum, Nassarius bellulus, Nassarius burchardi, Nassarius cabrierensis, Nassarius chowanensis, Nassarius coronatus, Nassarius crematus, Nassarius dorsatus, Nassarius gayi, Nassarius gigantulus, Nassarius glans, Nassarius granulatus, Nassarius hylus, Nassarius incrassatus, Nassarius janschloegli, Nassarius karinae, Nassarius kochianus, Nassarius luridus, Nassarius nodicinctus, Nassarius pagodus, Nassarius papillosus, Nassarius pauperus, Nassarius persicus, Nassarius prysmaticus, Nassarius pullus, Nassarius pygmaeus, Nassarius reductus, Nassarius repititi, Nassarius salina, Nassarius schizopyga, Nassarius scopularcus, Nassarius sopora, Nassarius splendidulus, Nassarius taeniolatus, Nassarius thielei, Nassarius trinitatensis, Nassarius trivittatoides, Nassarius vibex
Subtaxa: Caesia californiana Caesia cerritensis Caesia delosi Caesia fossatus Caesia moraniana Caesia perpinguis Caesia rhinetes Nassarius (Caesia) coalingensis Nassarius (Caesia) grammatus Nassarius (Caesia) whitneyi
Distribution:
• Quaternary of Mexico (11 collections), United States (113: California, Oregon)
• Blancan of United States (2: California)
• Pliocene to Pleistocene of United States (13: California, Washington)
• Pliocene of Mexico (1), United States (33: California, Oregon)
• Miocene to Pliocene of United States (1: California)
• Miocene of United States (14: California)
Total: 188 collections including 258 occurrences