Ever seen an ammonoid from the Toarcian Age? 🦑 This Jurassic fossil (ca. 180 Ma) from Val d'Azergues, Beaujolais, witnessed the Toarcian Oceanic Anoxic Event—a time of marine extinctions and warming that set its fossils apart from the Pliensbachian Age. 🌊 #Geology #Jurassic
#Geology #Jurassic