As each lobe foundered and sank due to compaction of clays into shales, its surface provided a unique habitat for evolving plants, forming extensive swamps covered by lush forests of primitive plants.
(each lobe; foundered; ) (extensive swamps; covered; by lush forests of primitive plants) (each lobe; sank; due to compaction of clays into shales) (its surface; provided; a unique habitat for evolving plants, forming extensive swamps)
each lobe extensive swamps each lobe its surface
foundered covered sank provided
by lush forests of primitive plants
due to compaction of clays into shales
a unique habitat for evolving plants, forming extensive swamps