Figure 19. Cleidocranial dysplasia. wormian bones, partial (or rarely complete) absence of clavicle, widened symphysis pubis, tall femoral head ossification centers, cone-shaped epiphyses. ← Previous Next → Figure 19. Cleidocranial dysplasia. wormian bones, partial (or rarely complete) absence of clavicle, widened symphysis pubis, tall femoral head ossification centers, cone-shaped epiphyses.