Table 1.
Length measurements and ratios of different sauropod taxa, with specimen number indicated.
| Taxa | Sc Length | H Length | F Length | F/H Ratio | Sacrum Angle |
|---|---|---|---|---|---|
| Spinophorosaurus nigerensis GCP-CV-4229 | 1243 | 1014* | 1215 | 1.20 | 20.1 |
| Shunosaurus lii ZDM T5402 | 902 | 670 | 1200 | 1.79 | 14.7 |
| Mamenchisaurus youngi ZDM0083 | 1190 | 825 | 1160 | 1.40 | 15.8 |
| Omeisaurus tianfuensis ZDM T5704 | 1330 | 1040 | 1280 | 1.23 | 18.5 |
| Jobaria tiguidensis MNN TIG4 | ? | 1040* | 1800 | 1.73 | 15.0 |
| Dicraeosaurus hansemanni MB.R.4886 | ? | 620 * | 1220 | 1.96* | 11.0 |
| Diplodocus carnegii. CM94 | 1240 | ? | 1542 | ? | 16.0 |
| Apatosaurus louisae CM3018 | 1640 | 1150 | 1785 | 1.55 | 15.5 |
| Brontosaurus excelsus YPM 1980 | ? | 1114 | 1910 | 1,72 | 15.0 |
| Tehuelchesaurus benitezii MPEF-PV-1125 | 1801 | 1183 | 1550 | 1.31 | 20? |
| Camarasaurus grandis YPM 1901 | 1.155 | 856 | 1172 | 1.37 | 17.5 |
| Brachiosaurus altithorax FMNH P25107 | ? | 2042 | 2025 | 0.99 | 28.8 |
| Giraffatitan brancai MB.R 2181 (formerly SII) | 1930 | 2130 | 1990* | 0.93 | 25.0 |
| Dreadnoughtus schrani MPM PV 1156 | 1772 | 1600 | 1910 | 1,19 | 21.1 |
| Opisthocoelicaudia skarzynski ZPAL MgD1/48 | 1180 | 1000 | 1395 | 1,39 | 14.1 |
| Kotasaurus yamanpalliensis | ? | *770 | 1130 | 1,46* | 3.7 |
| Melanorosaurus readi NM QR1551 | 489 | 450 | 638 | 1,41 | 1.0 |
| Lufengosaurus huenei IVPP 15 | ? | 335 | 560 | 1.67 | 5.4 |
| Jingshanosaurus xinwaensis LFGT-ZLJ0113 | ? | 470 | 850 | 1.80 | 1.5 |
| Yunnanosaurus huangi IVPP V20 | 305 | 231 | 435 | 1,88 | 2.1 |
Asterisk (*) indicates estimated measurements scaled from other specimens of the same species (see Supplementary Material). The sacrum angle and F/H ratio are plotted in the XY graphic on Fig. 2B. All lengths in mm. Angles in degrees. Sc = scapula, H = humerus, F = femur.