URI(s)
- http://id.loc.gov/authorities/subjects/sh85097139
- http://id.loc.gov/authorities/sh85097139#concept
Components
- Pennsylvanian
Variants
- Pennsylvanian Period
- Upper Carboniferous Period
Broader Terms
Closely Matching Concepts from Other Schemes
LC Classification
- QE729.3
Instance Of
Scheme Membership(s)
Collection Membership(s)
Change Notes
- 1986-02-11: new
- 1988-05-17: revised
Alternate Formats
