Search Result：Missippian period
missippian period 
(TTS Sound)
(TTS Sound)Overview of noun missippian_period
The noun missippian period has 1 sense
- Mississippian, Missippian period, Lower Carboniferous, Lower Carboniferous period -- (from 345 million to 310 million years ago; increase of land areas; primitive ammonites; winged insects)