Figure 5
Micro-computed tomography of the vertebrae of the herrerasaurid Gnathovorax (CAPPA/UFSM-0009). (A) silhouette shows the position of the axial elements. Artist: Felipe Elias. (B) 3D reconstruction of the anterior cervical vertebra and the correspondent high-contrast density slices in (D-I). Diagenetic artifacts greatly compromised the internal structures. (C) 3D reconstruction of the articulated posterior cervical vertebrae and the correspondent high-contrast density slices in (J–O). Minerals infilled between trabecular vacancies generate reddish anomalies. All images indicate irregular, chaotic, apneumatic architecture. Note the apneumatic large chambers in the centrum (ccv) and the smaller circumferential chambers at the bottom (cc). 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, ccv chamber in the centrum, ce centrum, ctr chaotic trabeculae, d diapophysis, dia diagenetic artifact, nc neural canal, nf nutritional foramen, poz postzygapophysis, prz prezygapophysis. Scale bar in (A) = 1000 mm; in (B–O) = 10 mm. Computed tomography data processed with 3D Slicer version 4.10. Figures were generated with Adobe Photoshop CC version 22.5.1 X64.
