Type
Zone
Age range
241.464–240.4 Ma

International Timescale

Middle Triassic
Ladinian
Anisian

Ammonite Zonation - Boreal

Tuchodiceras poseidon
Eoprotrachyceras matutinum
Frechites chischa
241.5241.4241.4241.3241.3241.3241.2241.2241.1241.1241.0240.9240.9240.8240.8240.8240.7240.7240.6240.6240.5240.4240.4

Macrostrat

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