Geological Timescale

Stratotype Point Base of Berriaisian

http://resource.geosciml.org/classifier/ics/ischart/BaseCretaceousSP

label Stratotype Point Base of Berriaisian
alt label
Stratotype Point Base of Cretaceous
Stratotype Point Base of Early Cretaceous
Stratotype Point Base of Lower Cretaceous
ratified GSSP false
correlation event Candidates include: (1) Magnetic -- Base of Chron M18r, (2) Base of Calpionellid zone B, (3) ammonite FAD of Berriasella jacobi
type
StratigraphicPoint original
Resource original
Concept original
represents boundary Base of Cretaceous original
see also index.html original