音标发音英式音标 [ˈpæl.i.ə.dʒiːn]美式音标 [ˈpeɪ.li.oʊ.dʒiːn]英式发音 美式发音 基本解释古第三纪的（迄今6600万至2300万年前）。同根派生 Paleogene相关词英汉例句adjectivethe Paleogene period 古第三纪Paleogene flora and fauna 古第三纪动植物Paleogene更多例句英英字典剑桥英英字典 from or referring to the period of time between about 66 and 23 million years ago, in which many insects, mammals, and birds appearedPaleogene剑桥字典Paleogene柯林斯字典