Gastropoda - Neogastropoda - Buccinidae
Full reference: J. W. Ruth. 1942. The molluscan genus Siphonalia of the Pacific Coast Tertiary. University of California Publications, Bulletin of the Department of Geological Sciences 26(3):287-306
Parent taxon: Siphonalia according to J. W. Ruth 1942
Sister taxa: Siphonalia (Kelletia), Siphonalia (Nassicola), Siphonalia (Siphonalia), Siphonalia acuta, Siphonalia ariejansseni, Siphonalia belenensis, Siphonalia bryani, Siphonalia calvertana, Siphonalia cassidariaeformis, Siphonalia cotteri, Siphonalia danvillensis, Siphonalia devexus, Siphonalia guineensis, Siphonalia hadlockensis, Siphonalia ishikariana, Siphonalia jacksonia, Siphonalia johnsoni, Siphonalia kalpanae, Siphonalia lineata, Siphonalia longirostris, Siphonalia nigeriensis, Siphonalia nipponica, Siphonalia nuntia, Siphonalia packi, Siphonalia paradoxica, Siphonalia phosoidea, Siphonalia pritilatae, Siphonalia roblini, Siphonalia rodeoensis, Siphonalia sakakurai, Siphonalia shojii, Siphonalia signa, Siphonalia spatiosa, Siphonalia sullivani, Siphonalia supragranulata, Siphonalia teglandae, Siphonalia tessaria, Siphonalia trilica, Siphonalia vistaensis, Siphonalia washingtonensis
Subtaxa: Siphonalia (Eosiphonalia) andersoni Siphonalia (Eosiphonalia) californica Siphonalia (Eosiphonalia) lewisensis Siphonalia (Eosiphonalia) washingtonensis
Ecology: epifaunal carnivore
Distribution:
• Miocene of United States (1: Washington collection)
• Oligocene of United States (4: California, Washington)
Total: 5 collections each including a single occurrence