Carboniferous Period occurred from about 360 to 285 million
years ago during the late Paleozoic Era. The term
"Carboniferous" comes from England, in reference to the
rich deposits of coal that occur there. These deposits
of coal occur throughout northern Europe, Asia, and midwestern
and eastern North America.
term "Carbonif- erous" is used throughout the world to describe
this geological period, although this period has been separated
into the Mississippi (Lower Carboniferous) 360 to 325 million
years ago, and the Pennsylvanian (Upper Carboniferous) 325
to 285 million years ago, in the United States. This
system was adopted to distinguish the coal bearing layers
of the Pennsylvanian from the mostly limestone Mississippi,
and is a result of differing stratography on the different
picture above represents what a majority of the land mass
the world looked like 300 million years ago. For
more information, click on the picture.
from the web pages of Dr. Ronald Blakey,
Professor of Geology, Northern Arizona University.
from the University of California, Museum of Paleontology