Mississippian period:

More on Mississippian period from Fact Monster:

• Carboniferous period - Carboniferous period Carboniferous period , fifth period of the Paleozoic era of geologic time (see ...
• sea lily - sea lily sea lily, stalked echinoderm of the class Crinoidea. Sea lilies are ancient, having ...
• Mound Builders - Mound Builders Mound Builders, in North American archaeology, name given to those people who built ...
• Carboniferous period: Historical Geology of the Period - Historical Geology of the Period The Carboniferous period was marked by vast, coal-forming swamps ...
• Encyclopedia: Geology and Oceanography - Encyclopeadia articles concerning Geology and Oceanography.

See more Encyclopedia articles on: Geology and Oceanography