1 Cartilaginous caps on the thoracic vertebrae that are more than half-ossified.
2 Lumbar vertebrae that have no evidence of cartilage or of a red line present on the tips of the spinous processes.
3 Spinous processes that are generally hard, white and flinty when split.
4 Ribs that are wide, flat and white.
5 A sternum that shows advanced ossification.
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