知识贝壳
知识贝壳
所属栏目：英汉古生物学专业术语
Definition: Rock material formed from consolidated mud or sediment that filled a holloworganic structure,such as a fossil shell. The fossil formed after dissolution of the mold.内核nèihé指生物遗体中空部分的充填物,如双壳类和腕足类常形成内核化石,其表面为外壳的内模 ......（本文共 365 字 ） [阅读本文] >>