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Becker et al. Givetian, Frasnian, and Famennian Substages

 Interval Maximum correlate
Late/Upper Famennian Famennian
Middle Famennian Famennian
Early/Lower Famennian Famennian
Late/Upper Frasnian Frasnian
Middle Frasnian Frasnian
Early/Lower Frasnian Frasnian
Late/Upper Givetian Givetian

hermanni and presumably disparilis and norrisi conodont zones

Middle Givetian Givetian

rhenanus, ansatus, and semialternans conodont zones

Early/Lower Givetian Givetian

ensensis, hemiansatus, and timorensis conodont zones

Authorizer: J. Alroy   Enterer: J. Alroy

Continent: global   Rank of each interval: age/stage

Basis of scale: paleontological  

Reference: T. R. Becker et al. 2004

Comments: the Eifelian is not subdivided

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