释义 |
Maastrichtian 基本例句 麦斯里希特阶¹⁰⁰ The upper part is made up of normal sedimentary sequence of Albian, toMaastrichtianstages, which was formed in the sagging episode of the basin evolution.上部充填序列由下白垩统上部-上白垩统坳陷期正常的沉积地层组成。 Cretaceous Bryozoa from the Campanian andMaastrichtianof the Atlantic and Gulf coastal plains, United States来自大西洋与海湾海岸平原、美国的坎潘阶和马斯特里赫特阶的白恶世苔藓虫 |