 They are similarly proportioned to those of the contemporary long-legged crocodylomorph "Terrestrisuchus" but differs in having a rounded deltopectoral crest at the very top of the humerus.A pelvis that may belong to "Aenigmaspina" is lightly built, with slender pubes and ischia and an ilium with a long, pointed backwards process and deep hip socket (acetabulum).If the few known skull elements are correctly referred to "Aenigmaspina", the parietal bone suggests that the roof of its skull may have been flat and roughly textured.