In geologic locations,such as southeastern Kansas,coal deposits can be found in layers called seams.Within these seams,there are also formations called coal balls,which may be the size of melons.When sawn apart carefully,fossils of tree-sized ferns and similar non-vascular plants can be found.The scaly leaves of these tropical plants originally led many paleobiologists to misidentify the trees as fish.Part of tropical coastal forests,the coal and fossil plants are estimated to have been living in

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Coal balls, which contain fossils of tree-sized ferns and non-vascular plants, are found in coal seams in locations such as southeastern Kansas. These plants are part of tropical coastal forests and are estimated to have lived during the Carboniferous period. Therefore, the best choice is E.

In Geologic Locations,such as Southeastern Kansas,coal Deposits Can Be Found