proterozoic
柯林斯詞典
1. N the later of two divisions of the Precambrian era, during which the earliest plants and animals are assumed to have lived 原生代→compareArchaeozoic
2. ADJ of or formed in the late Precambrian era 原生代的
返回 proterozoic
1. N the later of two divisions of the Precambrian era, during which the earliest plants and animals are assumed to have lived 原生代→compareArchaeozoic
2. ADJ of or formed in the late Precambrian era 原生代的