The rich early fossil record of the echinoderms reveals surprisingly dynamic patterns of body plan evolution and suggests that currently popular theories about how the major features of the animal originated and were maintained are unlikely to be correct.

中文翻译：

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进化：规划早期棘皮动物。

棘皮动物早期丰富的化石记录揭示了人体计划进化的惊人动态模式，并表明有关动物主要特征的起源和维持方式的当前流行理论不太可能是正确的。