 "Skeletocutis" is primarily distinguished from similar genera of wood-rotting fungi by microscopic features, especially by the sausage-shaped to ellipsoid spores, and spiny crystals covering certain hyphae in the pore tissue.The genus was circumscribed by Czech mycologists František Kotlaba and Zdenek Pouzar in 1958, with "Skeletocutis amorpha" as the type species.The fruit bodies of "Skeletocutis" are annual to perennial.