最后想说的是，古生物学上认错祖先是常有的事情。
就说认这五条鱼作为祖先，最终也会100%认错。很明显只有奇迹秀山鱼才是盾皮鱼，其它的都是软骨鱼，和我们的祖先没有任何的关系，甚至其中有一条是鲨鱼的祖先。
为什么说奇迹秀山鱼最后还是会认错呢？
因为奇迹秀山鱼往前的分子钟还有1000多万年，再加上早期盾皮鱼类也是一个大类群，随着未来相关化石发现得越来越多，它迟早也会被踢出人类祖先的预备团队。
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