But this summer scientists will be seeking another treasure: ancient plants and fish that became fossilized in the fine-grained mudstone of the area.
(scientists; will be seeking; another treasure; T:this summer) (ancient plants and fish; became fossilized; L:in the fine-grained mudstone of the area)
scientists ancient plants and fish
will be seeking became fossilized
another treasure T:this summer
L:in the fine-grained mudstone of the area