New diplodocine sauropod: Tables

TABLE 1. Measurements of the cervical vertebrae of Ardetosaurus viator MAB011899 (in mm).

Notes: Asterisks indicate estimates. Measurements are influenced by shear and transverse compression. Centrum length includes condyle length. Neural arch height is measured from the dorsal margin of the cotyle rim vertically to an horizontal line joining both posterior margins of the postzygapophyses. Neural spine height is measured vertically from the dorsal margin of the cotyle rim to the neural spine tip.

TABLE 2. Measurements of the dorsal vertebrae of Ardetosaurus viator MAB011899 (in mm).

Notes: Asterisks indicate estimates, often influenced by shear and transverse compression of the vertebrae. Centrum length includes condyle length. Neural arch height is measured from the dorsal margin of the cotyle rim vertically to an horizontal line joining the posterior-most edge of the postzygapophyses.

TABLE 3. Measurements of the thoracic ribs of Ardetosaurus viator MAB011899 (in mm).

Notes: Asterisks indicate estimates. Because no rib is complete, the proximodistal length is an estimate of the preserved parts. For RL1, the angle between the tuberculum and capitulum cannot be measured, as only the base is preserved of the capitulum. However, an estimate can be made. For RR?5, the capitulum is absent, resulting in an estimate as the intersecting line cannot confidently be placed on the rib head.

TABLE 4. Measurements of the sacrum of Ardetosaurus viator MAB011899 (in mm).

Notes: Due to the way the sacrum was mounted, measuring most parts of the sacrum was impossible. Rib width is measured mediolaterally on the ventral surface of the rib, from the lateral-most point to where the centrum is reached.

TABLE 5. Measurements of the caudal vertebrae of Ardetosaurus viator MAB011899 (in mm).

Notes: The cotyle measurements of all vertebrae are influenced by the poor preservation of the vertebrae, with the exception of Cd?4-6. The cotyle of Cd?5-8 is too deformed to provide a useful measurement.

TABLE 6. Measurements of the chevrons of Ardetosaurus viator MAB011899 (in mm).

TABLE 7. Measurements of the coracoid of Ardetosaurus viator MAB011899 (in mm).

TABLE 8. Measurements of the left ilium of Ardetosaurus viator MAB011899 (in mm).

TABLE 9. Measurements of the pubes of Ardetosaurus viator MAB011899 (in mm).

TABLE 10. Measurements of the ischia of Ardetosaurus viator MAB011899 (in mm).

TABLE 11. Measurements of the hindlimbs of Ardetosaurus viator MAB011899 (in mm).

Notes: Asterisk indicates estimate.

TABLE 12. Ratios of vertebral height to centrum length of posterior dorsal vertebrae of several diplodocoid specimens.

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. (2004b), 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.