Type
Zone
Age range
373–372.15 Ma
Late Devonian
Famennian
Frasnian
Palmatolepis triangularis
Palmatolepis linguiformis
Palmatolepis rhenana
373.0372.9372.9372.9372.8372.8372.7372.6372.6372.6372.5372.4372.4372.4372.3372.3372.2372.1