Class Actinopterygii Woodward, 1891 - ray-finned fishes Subclass Neopterygii Regan, 1923 Infraclass Teleostei Müller, 1845 Supercohort Teleocephala de Pinna, 1996 Clupeocephala Cohort Euteleosteomorpha (Greenwood et al., 1966) Subcohort Protacanthopterygii Greenwood et al., 1966 Order Argentiniformes Johnson & Patterson, 1996 - marine smelts Suborder Argentinoidei Bertelsen, 1958 Family Microstomatidae