paleontologic zonation
... paleontologic evidence 古生物标志 paleontologic zonation 古生物带 paleontological correlation 古生物对比 ...
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“如果始祖鸟是在今天发现的，我觉得古生物学家们肯定不会说它是鸟类，其实它就是一种带羽毛的恐龙，”卡里诺说。
"If Archaeopteryx were discovered today, I don't think you would call it a bird. You would call it a feathered dinosaur," says Carrano.
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