 It is mostly known from the front half of its body, including its vertebral column, ribs, shoulder and parts of the forelimb, as well as possibly pieces of skull and pelvis that may belong to it.The vertebrae of "Aenigmaspina" are its most distinctive feature.These are characterised by their spine tables, where the tops of the neural spines split into a broad 'V' shape with a deep groove between them.