Hensodon is an extinct genus of marine pycnodont ray-finned fish known from the Late Cretaceous of the Middle East. It contains a single species, H. spinosus, that lived during the upper Cenomanian-aged Sannine Formation of what is now Lebanon. H. spinosus superficially resembled a marine angelfish with a massive head, and a very spiny pectoral girdle. Different specimens have different arrangements of the horn-like frontal spines, and these are potentially thought to represent sexual dimorphism within the species. One form has the horns arranged as a double-prong, assumed to be the male, and the other form, assumed to be the female, having the horns one after the other, like those of a rhinoceros.
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