Ordovician的例句（Ordovician在句子中的用法）

• The Cambrian - Ordovician strata in Luxi Block are very continuous and well exposed. 鲁西地块的寒武 - 奥陶纪地层出露连续,露头较好.
• Bryozoa was quite diversified in the Ordovician, but lacked fossil records in the Cambrian. 古生物学资料表明,虽然苔藓动物的大多数类群在奥陶纪已经分化出来, 但它在寒武纪却缺乏任何化石记录.
• The Ordovician lithofacies and biofacies change greatly at different localities of the Yangtze Region, South China. 华南扬子区不同地点奥陶纪的岩相 、 生物相变化显著.