Comparative Study on amelogenesis between living and extinct mammals

犀牛牙齿的组织学比较显示了独特的成釉细胞运动。我们将研究南美洲的化石，并将其与其他地点和时期的形态和组织学变化进行比较。在同一时期居住在同一地方的Desmostylia的2个属。我们把发展研究和生态研究结合起来。长鼻目的门齿釉质带已经研究了几个例子，并与臼齿釉质的比较，使组织学发展和有袋动物的分子生物学研究给出了关于哺乳动物颌骨和牙齿形成的一般性和专业化的建议。

A comparison of the histology of the tooth of rhinoceroses revealed a unique ameloblastic movement. We will research the South American fossils and compare their variation of the morphology and histology with other location and period. 2 genus of the Desmostylia which inhabited the same place for the same period. We are associating developmental study and ecological study. The incisor enamel band of the Proboscidea has been studied few examples, and the comparison with the molar enamel is enabled histological development and the molecular biologic study of Marsupials give a suggestion about generality and specialization in the formation of the mammalian jaws and teeth.