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Gateway to the Paleobiology Database

Aptian Substages

 Interval Maximum correlate Ma
Early/Lower Albian Albian
112.03
Late/Upper Aptian Aptian

base of angustus calcareous nannofossil zone (= NC7)

122.46
Early/Lower Aptian Aptian
125.45

Authorizer: J. Alroy   Enterer: J. Alroy

Continent: global   Rank of each interval: subage/stage

Basis of scale: paleontological  

Reference: C. Huang et al. 2010

Comments: the early/late Aptian boundary is not discussed, but the base of NC7 is taken as the boundary by most calcareous nannofossil workers whereas there is little agreement amongst planktonic foram and ammonite workers about it location

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