From 2003 to 2004, we collected a large amount of Nautiloid and Graptolite fossils in upper metamorphic formations of Mayigangri area and determined the age to be middle and Late Ordovician-Silurian.
在羌塘南部地区发现有可
依据的早古生
地层存在尚属首次。
(古无脊椎动物,现存
)From 2003 to 2004, we collected a large amount of Nautiloid and Graptolite fossils in upper metamorphic formations of Mayigangri area and determined the age to be middle and Late Ordovician-Silurian.
在羌塘南部地区发现有可依据的早古生地层存在尚属首次。
2004年我们在玛依岗日一
变质岩系上部采获大量鹦鹉螺类和笔类,经研究确
属中、晚奥陶世-志留纪.
From 2003 to 2004, we collected a large amount of Nautiloid and Graptolite fossils in upper metamorphic formations of Mayigangri area and determined the age to be middle and Late Ordovician-Silurian.
声明：以上例句、词性分类均由互联网资源自动生成，部分未经过人工审核，其表达内容亦不表本软件的观点；若发现问题，欢迎向我们指正。
