Dictionary Entry: 第三纪
Word
Pinyin
第三纪
dì sān jì
third period ꞏ tertiary (geological era since the extinction of the dinosaurs at the Cretaceous-Tertiary boundary 65 million years ago)
third period ꞏ tertiary (geological era since the extinction of the dinosaurs at the Cretaceous-Tertiary boundary 65 million years ago)
