Hierarchy classification:

1. top of the aat hierarchies
2. Styles and Periods Facet
3. Styles and Periods (hierarchy name)
4. [styles, periods, and cultures by general era]
5. geologic time scale
6. Phanerozoic
7. Paleozoic

Anotations

Scope note:

The fifth interval of the Paleozoic Era in the geologic time scale, following the Devonian Period and preceding the Permian Period. The Carboniferous Period began approximately 358.9 million years ago and ended 298.9 million years ago, the longest period of the Paleozoic Era and the second longest period of the Phanerozoic Eon. The first reptiles and seed-bearing plants appeared during this period, accompanied by widespread coral reefs, coal-forming swamp forests, and extensive limestone deposits.