Heptanema is an extinct genus of prehistoric coelacanth from the Middle Triassic (Ladinian) of northern Italy and Switzerland. The type and only species is Heptanema paradoxum. Woodward (1891) suggested that Coelacanthus minor could be a species of Heptanema. See also Sarcopterygii List of sarcopterygians List of prehistoric bony fish References Prehistoric lobe-finned fish genera