ammonites
banner
Gateway to the Paleobiology Database

Sandberg et al. Late Devonian Substages

 Interval Maximum correlate
Late/Upper Famennian Famennian

expansa and praesulcata zones

Middle Famennian Famennian

marginifera, trachytera, and postera zones

Early/Lower Famennian Famennian

triangularis, crepida, and rhomboidea zones

Late/Upper Frasnian Frasnian

most of the rhenana zone and linguiformis zone

Middle Frasnian Frasnian

punctata, hassi, and jamieae zones and lowermost rhenana zone

Early/Lower Frasnian Frasnian

most of the falsiovalis zone and the transitans zone

Authorizer: J. Alroy   Enterer: J. Alroy

Continent: global   Rank of each interval: subage/stage

Basis of scale: paleontological  

Reference: C. A. Sandberg et al. 2003

View another time scale