| 释义 |
Mississippian period
Mississippian periodIn North America, the first part of what is generally called the Carboniferous period: 360 to 321 million years ago.Mississippian period
Mississippian period: see Carboniferous periodCarboniferous period
, fifth period of the Paleozoic era of geologic time (see Geologic Timescale, table), from 350 to 290 million years ago. Historical Geology of the Period
..... Click the link for more information. .MedicalSeeCarboniferous period |