†Siphonalia trilica Rivera 1957 (true whelk)
Gastropoda - Neogastropoda - Buccinidae
Full reference: R. Rivera. 1957. Moluscos fosiles de la Formacion Paracas, Dpto. de Ica. Sociedad Geologica del Peru Primer Congreso Nacional de Geologia Anales - Parte II 32:165-219
Belongs to Siphonalia according to R. Rivera 1957
Sister taxa: Siphonalia acuta, Siphonalia andersoni, Siphonalia ariejansseni, Siphonalia belenensis, Siphonalia calvertana, Siphonalia cassidariaeformis, Siphonalia cotteri, Siphonalia devexus, Siphonalia ishikariana, Siphonalia johnsoni, Siphonalia longirostris, Siphonalia nipponica, Siphonalia nuntia, Siphonalia paradoxica, Siphonalia phosoidea, Siphonalia roblini, Siphonalia shojii, Siphonalia signa, Siphonalia spatiosa, Siphonalia tessaria
Ecology: epifaunal carnivore