Bartonian

Bartonian

End: 
37.20mya
Start: 
40.40mya
Synonyms: 
Duchesnian
RobiacianSharamurian

Bartonian

End: 
37.20mya
Start: 
40.40mya
Synonyms: 
Duchesnian
RobiacianSharamurian
Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith