1) what was the pennsylvanion period, it's also know as the paleozoic era ?

Question

this is for my science class and i dont have much time to gather info but from what i found it doesn't tell me much but i would really like it if you could help me with this. thanks

Answer 1

The Pennsylvanian Period is the next to last Period in the Paleozoic Era. The Pennsylvanian Period is also the younger of two periods that make up the Carboniferous Period (which is used by geologists over most of the world).

Much plant material which eventually became coal was deposited in the Pennsylvanian Period. Ferns, tree ferns, cycads, and the ancestors of club moss were common in the Pennsylvanian. What we know as Horsetail Scouring Rush, which is a small, reedlike plant with segments, were the size of trees during the Pennsylvanian.

Land animals were coming into their own, and consisted of arthropods, amphibians, and reptiles. In the sea numerous creatures were common, and included fusulinids (a type of foraminiferan), worms, brachiopods, clams, snails, and cephalopods. Trilobites were on the decline. Some fish were there as well.

The Pennsylvanian Period is so named because it was first defined as a distinct period from outcrops in the state of Pennsylvania, in the United States.