Mississippian

prop. n.	1.	A geological period extending from from 310 million to 345 million years ago; it was associated with an increase of land areas, the presence of primitive ammonites, and emergence of winged insects; called also Missippian period and Lower Carboniferous period.
	2.	A resident of Mississippi.

Noun	1.	Mississippian - from 345 million to 310 million years ago; increase of land areas; primitive ammonites; winged insects Synonyms: Lower Carboniferous, Lower Carboniferous period, Missippian period
	2.	Mississippian - a resident of Mississippi

Carboniferous, Carboniferous period, geological period, Lower Carboniferous, Lower Carboniferous period, Missippian period, period