链鳄（aetosaurs）、植龙（phytosaurs）、蜀龙（shuvosaurs）还有其他许多长相不类似鳄鱼的近支生物势力突然削弱，一个全然陌生的群体脱颖而出。

Then, the ranks of aetosaurs, phytosaurs, shuvosaurs and many other uncrocodile-like relatives of the crocodiles were suddenly thinned, and a previously obscure group came to the fore.

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