Table 1 Equations used to calculate the mean values for the mass of the specimens plotted in Fig. 3.

From: Gender identification of the Mesozoic bird Confuciusornis sanctus

Allometric equation

Author

DNHM-D1874 femur (L) (mm)

DNHM-D1874 mass (W) (g)

L=76 × W0.28

Maloiy et al.26

52.16

259

L=36 × ((W/0.19)0.37)

Alexander27

52.16

516

L=60.651 × W0.3549

Peters and Peters29

52.16

659

   

Mean=478

  1. Mean values were calculated from the body mass estimates derived from the equations of Maloiy et al.26 and Alexander27, as listed by Hone et al.,28 and the equation of Peters and Peters29, which was modified from that of Prange et al.30
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