Read Edit View history 白垩纪 Bái'èjì Cretaceous Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 白垩纪/白堊紀 · Bái'èjì · Cretaceous 2026/03/04 白垩纪 / 白堊紀 Bái'èjì Cretaceous Cretaceous (geological period 140-65m years ago) 恐龙在白垩纪末期灭绝了。 time word created sense Mar 4, 2026, 02:25 AM