Figure 1 in The vertebral column of Chaetophractus villosus (Desmarest, 1804) (Chlamyphoridae, Cingulata, Xenarthra): Anatomy and Thoracolumbar variation. Spinal cord relation

Figure 1. Major details in every region of the axial skeleton of C. villosus. (A-B) Anterior and posterior view of the atlas (C1), respectively. t.a. = transverse apophysis, ax.fc. = articular facet for the axis, ax.ne.fc. = articular facet for the neurapophysis of the axis, f.d. = fovea dentis, g.c. = glenoid cavity for the occipital bones, in lateral mass (l.m.), tb. = tuberosity, t.f. = transverse foramen. (C-D) Lateral and ventral view of the mesocervical bone (C2 + C3 + C4), respectively: od.pr. = odontoid process, ax. = axis, t.a. = transverse apophysis, ne. = neurapophysis. (E) left image: laterodorsal view of the axial region including the mesocervical bone, posterior free cervicals (C5-C7), and first thoracic vertebra (T1); right image: lateroventral view of the last free cervical (C7) and first thoracic vertebrae. ne. = neurapophysis, int.f. = intervertebral foramina, grey areas show the articular facets in C7 and T1 for the first rib. (F-G) dorsal and lateral views of the axial region between T4 and T7, respectively. Black arrowheads indicate the dorsal xenarthrales, me. = metapophysis, an. = anapophysis, tb.fc. = facet for the tubercle of the rib, cp.fc. = facet for the capitulum of the rib. The supplementary articulations (= xenarthrales) are clearly shown in the schematic drawing in the circular areas. (H) anterior (left) and posterior (right) view of T9 showing the pre- and postzygapophyses, respectively. Black arrowheads indicate the vertical component in both articular facets. (I) lateral view of the axial region between the last thoracics (T9-T11) and first lumbar (L1). Grey surfaces in T11 (also outlined in black) and L1 indicate the facets of the ventral xenarthrales. an. = anapophysis, a.dfc. = anterior demifacet for the capitulum of the rib, me. = metapophysis. (J-K) Dorsal and lateral views of the axial skeleton (with the exception of the caudal region) of a specimen that bears 11 thoracic and 3 lumbar vertebrae. ac. = Acetabulum, an. = anapophysis, a.r. = anterior ramus of the pubis, di.vb. = diaphragmatic vertebrae, il. = ilium, il.tb. = iliac tuberosity, is. = ischium, is.tb. = ischial tuberosity, me. = metapophysis, o.f. = obturator foramen, pb. = pubis, p.r. = posterior ramus of the pubis, S. = synsacral vertebrae, s.is.f. = sacroischial foramen, v.r. = ventral ramus of the pubis. * Dorsoventral curvature of the cervical vertebrae.