An excellent example of an approximately 6-year-old skeleton. The age of the skeleton was determined by reference to the natural bone specimen, which exhibits the unfused epiphyses of the long bones, and the cartilaginous margins of many bones at this age of development. All the deciduous (baby teeth) are present in the upper and lower jaws. The anterior, posterior, sphenoidal and mastoidal fontanelles are all closed. The spheno-occipital synchondrosis and the calvarial sutures are open. Post-cranially, most of the neurocental fusion in the vertebrae have commenced, the entire proximal epiphysis of the humerus is present, fusion of the ischio-pubic rami is visible, the greater trochanter of the femur is recognizable, and the medial malleolus of the tibia has begun to ossify. This skeleton serves as an exceptional example of child development and teaching model in the laboratory.