Replica Human Child Skull - 6-year-old with Exposed Dentition Armadillo Ribbon seals spend much of

Ribbon seals spend much of their lives away from shore

Perfect for comparative anatomy study

containing only two species

Base Length 21

often considered a predecessor to later giants like Tyrannosaurus rex

Replica Human Child Skull - 6-year-old with Exposed Dentition Armadillo Ribbon seals spend much ofAn excellent example of an approximately 6 year old skull. All the deciduous (baby teeth) are present in the upper and lower jaws. The alveolar bone overlying both maxillae and mandible has been dissected away, revealing deciduous tooth root morphology and development of permanent dentition. The anterior, posterior, sphenoidal and mastoidal fontanelles are all closed. The spheno occipital synchondrosis and the calvarial sutures are open. By removing