Type
Zone
Age range
229.5–226.5 Ma
Late Triassic
Norian
Carnian
Epigondolella quadrata
Metapolygnathus primitius
Metapolygnathus nodosus
229.6229.4229.2229.0228.8228.6228.4228.2228.0227.8227.6227.4227.2227.0226.8226.6226.4