bn:00061388n
Noun Named Entity
Categories: Pennsylvanian geochronology, Geological epochs, Carboniferous geochronology, Carboniferous United States, Pennsylvanian
EN
Pennsylvanian  Pennsylvanian period  Upper Carboniferous  Upper Carboniferous period  Pennsylvanian epoch
EN
From 310 million to 280 million years ago; warm climate; swampy land WordNet 3.0
English:
geology
Definitions
Relations
Sources
EN
From 310 million to 280 million years ago; warm climate; swampy land WordNet 3.0
The period from 310 million to 280 million years ago; characterized by warm climate and swampy land Open English WordNet
The Pennsylvanian is, in the ICS geologic timescale, the younger of two subperiods of the Carboniferous Period. Wikipedia
A geological subperiod of the Carboniferous Period Wikipedia Disambiguation
second epoch of the Carboniferous period Wikidata