Extended Data Figure 2: Sectional slices that illustrate the integrity of MPC-D102/109.

a, Detail of anterior end of neck and posterior half of skull that shows continuity of the craniocervical transition. b, Detail of neck and skull that shows continuity between bones and matrix. c, Detail of proximal caudal series that shows the glued crack that crosses both matrix and bone (arrow), which confirms continuity between the sacrum and tail. d, Selected series of slices that show the continuity of bones and matrix along main slab. e, Overview of MPC-D102/109 indicating the curved virtual slice along a polyline (materialized above a 3D rendering) with slices at 5 mm on each side of this line every 1 mm. The line follows the axial column in order to show the continuity of the vertebral series. Scale bar, 70 mm. The renderings are generated using scan data that have been corrected for the absorbing metallic oxide infilling.