Cretaceous The most recent period of the Mesozoic era, 145-66 million years ago.
Cretaceous The most recent period of the Mesozoic era, 145-66 million years ago.
白垩纪：地质年代中生代的最后一个纪，距今一亿四千五百万年至六千六百万年前。
Cretaceous The most recent period of the Mesozoic era, 145-66 million years ago.
白垩纪：地质年代中生代的最后一个纪，距今一亿四千五百万年至六千六百万年前。