Fig. 4 in Caudipteryx as a non-avialan theropod rather than a flightless bird

Fig. 4. Logarithmic plots of hind limb measurements (in mm). A. Femur length against total leg length. B. Tibia length (against total leg length. C. Tarsal length (mt. III) against total leg length. Regression statistics for principal data subdivisions are given in Table 2. Symbols: dotted lines, extent of neornithean bird distributions; crosses, non−avialan theropods; circles/diamonds, oviraptorosaurs (including Caudipteryx).