|
|
Definition of Upper Carboniferous
1. Noun. From 310 million to 280 million years ago; warm climate; swampy land.
Exact synonyms: Pennsylvanian, Pennsylvanian Period, Upper Carboniferous Period
Group relationships: Carboniferous, Carboniferous Period
Generic synonyms: Geological Period, Period
Group relationships: Carboniferous, Carboniferous Period
Generic synonyms: Geological Period, Period
Lexicographical Neighbors of Upper Carboniferous
Other Resources:
