The forelimb was significantly shorter than the hindlimb, a characteristic shared with lepospondyls. The only well-preserved portions of the shoulder girdle were the scapulocoracoids (shoulder blades), which were large and robust. The humerus is simple and thinnest in the middle, more similar to microsaurs and early amniotes rather than larger tetrapods. The ulna is similar to that of gracile "pelycosaurs", including small species of "Dimetrodon" such as "D. milleri". Although the hand of Lizzie was disarticulated, four metacarpal bones could be identified. This indicates that members of "Westlothiana" possessed at least four, and possibly even five fingers. Practically all other reptiliomorphs possessed five-fingered hands, except for the majority of lepospondyls. Lepospondyls (with the exception of "Diceratosaurus" and "Urocordylus") possessed four or fewer fingers. Analyses which consider "Westlothiana" to possess only four fingers generally agree that it is a lepospondyl.