Paleozoic Earth - Carboniferous forest in afternoon light

Location Worldwide 350 million years ago Mean atmospheric O₂ 163% of modern level Mean atmospheric CO₂ 3x pre-industrial level Mean temperature Same as modern level		Geologic Time Scale Era: Paleozoic Period: Carboniferous* Epoch: Early Age: Tournaisian

	Carboniferous forest in afternoon light A Carboniferous forest of Midwestern North America 350 million years ago featuring vascular, arborescent (tree-like) plants of the species Lepidodendron aculeatum (resembling feather dusters on long sticks), spore-bearing, arborescent plants of the species Sigillaria scutellata (resembling toilet bowl brushes), Asteroxylon mackiei (at this scale may be mistaken for grass), and ferns. Some Lepidodendron grew as tall as 150 feet.	*AKA Carboniferous/ Mississippian