Silt-laden tributary rivers transported sediments and built swampy deltas where great forests flourished in the steamy climate and eventually formed huge coal deposits.
(Silt-laden tributary rivers; transported; sediments) (Silt-laden tributary rivers; built; swampy deltas where great forests flourished in the steamy climate and eventually formed huge coal deposits) (great forests; flourished; L:in the steamy climate; L:swampy deltas)
Silt-laden tributary rivers Silt-laden tributary rivers great forests
transported built flourished
sediments
swampy deltas where great forests flourished in the steamy climate and eventually formed huge coal deposits
L:in the steamy climate L:swampy deltas