同根派生 Paleocene epoch相关词英汉例句Paleontological studies showed that modern avian groups probably first appeared in the Paleocene and experienced an explosive radiation in the early Cenozoic.古生物學研究表明，現生鳥類的最早出現是在古新世，而爆發性輻射縯化發生在新生代早期。Paleocene epoch更多例句