Pennsylvanian

Bibliographic references: 
absolute age of base: 
318100ky
error in absolute age of base: 
0%
Containing Unit: 
rank: 

Epoch/Series

status: 
global
Glossary: 

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Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith