Fig. 3

a–b Laser scan based digital files of dorsal vertebrae 1 through 11 of the MFN mount with left dorsal ribs 7 through 9 and right dorsal ribs 2, 3 and 6 in left lateral view. Transparent mirror copies of ribs are added where contralateral elements are missing. Light grey and dark grey areas: most dorsal and most ventral scapula positions in shallow orientation. Light grey area with black rim: steepest and most posterior possible scapula position. For further explanations see text. Sacrum is assumed horizontal, different angles of the dorsal 11 with the horizontal in a and in b result from extension of the posterior dorsals (not shown). Scale bar 0.5 m, dorsals in ONP (a), dorsals extended by ~2° per intervertebral joint (b). c–d Laser scan based digital file of the left ulna (MB.R.4800.33) of the MFN mount (on the left in c, on top in d) and mechanical digitizing based files of left ulna (IFGT field number St 133, in the middle in c and d) and right ulna (IFGT unnumbered, on the right in c, on the bottom in d). Both IFGT ulnae are part of the IFGT mount (GPIT 1542). Scale bar 0.25 m, anterior (c) and lateral (d) views. Arrows point at proximal process in MB.R.4800.33