Kentrosaurus as basal stegosaurids, further suggesting that they are closely related. In Hennig’s 1915 description, Kentrosaurus was assigned to the family Stegosauridae due to the preservation of dermal armor and features like posterodorsally angled neural spines on the caudal vertebrae. This is confirmed by modern cladistic analyses, although in 1915 Stegosauridae was a far more inclusive concept that included some taxa now classified as ankylosaurs. A consecutive narrowing down of this concept caused Kentrosaurus, until the 1980s to be seen as a typical "primitive" stegosaurian, to be placed in a more derived, higher, position in the stegosaur evolutionary tree. However, recent analyses have consistently found Kentrosaurus to be in Stegosauridae, though typically as one of the most basal genera in the family. Kentrosaurus has many traits not seen in other stegosaurids but seen in basal stegosaurians, such as the presence of a parascapular spine and maxillary teeth with only seven denticles at the margin. Cladogram of Stegosauria below that includes nearly every known stegosaur genus, recovering Kentrosaurus as a basal stegosaurid: The type and sole accepted species of Kentrosaurus is Kentrosaurus aethiopicus, named by Hennig in 1915. Fragmentary fossil material from Wyoming, named Stegosaurus longispinus by Charles Gilmore in 1914, was in 1993 classified as a North American species of Kentrosaurus, as K. longispinus. However, this action was not accepted by the paleontological community, and S. longispinus has been assigned to its own genus, Alcovasaurus, differing from Kentrosaurus in having more elongated tail spikes and the structure of the pelvis and vertebrae. Cladogram of the phylogenetic analysis of Stegosauridae conducted by Maidment et al (2019), which recovers a distinct Alcovasaurus: Paleobiology Feeding Like all ornithischians, Kentrosaurus was a herbivore. The fodder was barely chewed and swallowed in large chunks. One hypothesis on stegosaurid diet holds that they were low-level browsers, eating foliage and low-growing fruit from various non-flowering plants. Kentrosaurus was capable of eating at heights of up to when on all fours. It may also have been possible for it to rear up on its hindlegs to reach vegetation higher in trees. With its centre of mass close to the hind-limbs, the animal could potentially support itself as it stood up. The hips were likely capable of allowing a vertical trunk rotation of about 60 degrees and the tail probably would either have been fully lifted, not blocking this movement or have enough curvature to rest on the ground;