Type
Zone
Age range
381.2–380.2 Ma
Late Devonian
Frasnian
Palmatolepis punctata
Palmatolepis transitans
Mesotaxis guanwushanensis
381.2381.1381.1381.1381.0380.9380.9380.9380.8380.8380.7380.6380.6380.6380.5380.4380.4380.4380.3380.3380.2