Figure 6
Micro-computed tomography of the vertebrae of the early sauropodomorph Pampadromaeus (ULBRA-PV016). (A) silhouette shows the position of the axial elements. Artist: Felipe Elias. (B) 3D reconstruction of the mid-dorsal vertebra and the correspondent high-contrast density slices in (D–G). Diagenetic artifacts significantly compromised the internal structures in this element. (C) 3D reconstruction of the articulated anterior dorsal vertebrae and the correspondent high-contrast density slices in (H–M). Note the circumferential chambers at the bottom of the centrum in (H). Also, note the ‘pseudopolycamerate’ architecture in (L). All images indicate irregular, chaotic, apneumatic architecture. All slices were taken from the approximate midshaft. Anterior views in (D,H,I). Right lateral view in (E,L,M). Ventral view in (F,G,J,K). cc circumferential chambers, ce centrum, ctr chaotic trabeculae, d diapophysis, dia diagenetic artifact, ltr layered trabeculae, nc neural canal, nf nutritional foramen, ppc ‘pseudopolycamerate’ architecture, prz prezygapophysis. Scale bar in (A) = 500 mm; in (B–M) = 10 mm. Computed tomography data processed with 3D Slicer version 4.10. Figures were generated with Adobe Photoshop CC version 22.5.1 X64.
