Putanga 1: I roto i te lithostratigraphy Pākehā, ko ngā toka o tēnei wā o te Middle Jurassic e kiia ana ko te Dogger. Putanga 2: I roto i te waenganui o te Jura - lithostratigraphy, ko nga toka o tenei tau o Europi e kiia ana ko Dogger. Pātai: He ōrite te tikanga o te rerenga 1 me te rerenga 2? He Ae, he Kore rānei?
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