Lowstand System Tracts of Early and Metaphse Jurassic Period was undergrown of which Transgressive Systems Tract and Highstand Systems Tract made up .

早、中侏罗世低位体系域不 发育，由海进体系域与高位体系域两部分组成。

To where it bent in the undergrown .

直到它消失在 丛林 深处。