Type
Zone
Age range
217.4–216.9 Ma
Late Triassic
Norian
Cypriodella spiculata
Cypriodella multidentata
Epigondolella triangularis
217.42217.40217.38217.36217.34217.32217.30217.28217.26217.24217.22217.20217.18217.16217.14217.12217.10217.08217.06217.04217.02217.00216.98216.96216.94216.92216.90216.88