Figure 6 in Development and evolution of regionalization within the avian axial column

Figure 6. Images and associated schematic diagrams of cleared and stained axial skeletons of chicken (Gallus gallus domesticus) embryos from developmental stages 40 to 42. A, stage 40 (day 14 of incubation) right lateral view. B, stage 40 right lateral schematic. C, stage 40 posterior schematic. D, stage 41 (day 15 of incubation) right lateral view. E, stage 41 right lateral schematic. F, stage 41 posterior schematic. G, stage 42 (day 16 of incubation) right lateral view. H, stage 42 right lateral schematic. I, stage 42 posterior schematic. Blue is cartilage and dark purple represents ossified tissue. Light grey is cartilage and black represents ossified tissue in the diagrams. Scale bar, 1 cm.