 slender limbed), although some must come from at least one other individual based on duplicated bones from the forelimb.A single vertebra from a quarry in Cromhall in South Gloucestershire, England closely matches the cervicals of "Aenigmaspina", including what appears to be the 'Y'-shaped spine table.The generic name, from the Latin "aenigma" for "enigma" or "puzzle" and "spina" for "spine", was chosen to refer to the difficulty of identifying the fossil pieces belonging to it and its uncertain evolutionary relationships, and also for its uniquely characteristic spine tables on its vertebrae.