†Littoraria (Styloplocus) Cossmann 1923 (periwinkle)
Gastropoda - Sorbeoconcha - Littorinidae
Alternative spelling: Littorinopsis (Styloplocus)
Parent taxon: Littoraria according to J. -M. Pacaud 2012
See also Glibert 1962 and Sepkoski 2002
Sister taxa: Littoraria (Littorinopsis), Littoraria (Palustorina), Littoraria (Palustorina) articulata, Littoraria angulifera, Littoraria coccinea, Littoraria filosa, Littoraria flava, Littoraria irrorata, Littoraria nebulosa, Littoraria scabra, Littoraria undulata
Subtaxa: Littoraria (Styloplocus) amorica
Ecology: epifaunal grazer
Distribution:
• Eocene of France (2 collections)
Total: 2 collections each including a single occurrence