TABLE 12 in A new diplodocine sauropod from the Morrison Formation, Wyoming, USA

TABLE 12. Ratios of vertebral height to centrum length of posterior dorsal vertebrae of several diplodocoid specimen. VertebraArdetosaurus viator MAB 011899Diplodocus carnegii CM 84Diplodocus hallorum NMMNH 3690Galeamopus pabsti SMA 0011/NMZ 1000011Barosaurus lentus YPM VP. 000429Barosaurus lentus AMNH FARB 6341Amphicoelias altus AMNH FARB 5764DV72.313.073.324.763.264.07DV82.153.084.205.524.013.29DV92.084.204.385.633.24DV103.694.64VertebraSupersaurus vivianae BYU 725-9044Supersaurus vivianae WDC DMJ-021Supersaurus lourinhanensis ML 414Apatosaurus louisae CM 3018Diplodocidae indet. FMNH P25112Apatosaurinae indet. NSMT-PV 20375Haplocanthosaurus pricus CM 572DV72.652.823.914.904.624.693.51*DV84.874.304.744.05*DV95.295.244.18*DV105.365.484.92* Notes: Herne and Lucas (2006) compared total vertebral height of NMMNH 3690 to other diplodocids. However, Hatcher (1901), Riggs (1903) and Gilmore (1936) used greatest height measurements for CM 84, FMNH P25112 and CM 3018. In addition, for CM 3018, Herne and Lucas (2006) used incorrect values. Ratios for MAB011899, CM 84, SMA 0011/NMZ 1000011, AMNH FARB 5764, BYU 725-9044, WDC DMJ-021, CM 3018, FMNH P25112 and CM 572 are based on greatest height measurements. Ratios for NMMNH 3690, YPM VP.000429, AMNH FARB 6341, ML 414 and NSMT-PV 20375 are based on total height measurements. Measurements of CM 84 are taken from Hatcher (1901) and Lull (1919), of NMMNH 3690 from Herne and Lucas (2006), of SMA 0011/NMZ 1000011 from Tschopp and Mateus (2017), of YPM VP.000429 from Lull (1919), of AMNH FARB 6341 from McIntosh (2005), of AMNH FARB 5764 measured from figure 5 and table 2 in Mannion et al. (2021), of BYU 725-9044 measured from figure 1 in Jensen (1985), of WDC DMJ-021 measured from figure 5 in Mannion et al. (2012), of ML 414 from Mannion et al. (2012), of CM 3018 from Gilmore (1936), of FMNH P25112 from Gilmore (1936), of NSMT-PV 20375 from Upchurch et al. (2004 b), of CM 572 from Hatcher (1903). Note that for SMA 0011/NMZ 1000011, ML 414 and NSMT-PV 20375, centrum length is provided as centrum length minus condyle. However, in all three specimens, a true convex condyle is absent, such that centrum length is nearly equal to centrum length minus condyle. For AMNH FARB 5764, BYU 725-9044 and WDC DMJ-021, the serial position of the vertebrae is unknown, so their ratios are placed in the top row. *These are dorsal vertebrae 11, 12, 13 and 14 sensu Hatcher (1903), as Haplocanthosaurus possesses more dorsal vertebrae than diplodocids.