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Frechites chischa
766
Type
Zone
Age range
243.5–241.464
Ma
International Timescale
Middle Triassic
Ladinian
Anisian
Ammonite Zonation - Boreal
Eoprotrachyceras matutinum
Frechites chischa
Eogymnotoceras deleeni
243.5
243.4
243.3
243.2
243.1
243.0
242.9
242.8
242.7
242.6
242.5
242.4
242.3
242.2
242.1
242.0
241.9
241.8
241.7
241.6
241.5
241.4
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