Dialipina is an extinct genus of prehistoric marine bony fish from the Early Devonian.[1][2] It contains two species, both known from the high Arctic of Asia and North America. It was initially thought to be and sometimes still is treated as an early, basal actinopterygian,[3][4][5] but recent phylogenetic analyses suggest that it may instead be a stem-osteichthyan.[6][7]
^Friedman, Matt (January 2007). "Styloichthys as the oldest coelacanth: Implications for early osteichthyan interrelationships". Journal of Systematic Palaeontology. 5 (3): 289–343. doi:10.1017/S1477201907002052.