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

Multiple Choice

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

A) None of the answer choices are correct.
B) the Precambrian supereon, following development of plants.
C) the Cambrian period, following the "explosion" of diverse life.
D) both the Mesozoic era and the Cretaceous period.
E) the Carboniferous period.