stadium From Wikipedia, the free encyclopedia
Berriasium[1][2] est stadium stratigraphicum vel aetas geologica antiquissima seriei Cretaceae inferioris. Milies milium circiter 145 annorum ante praesentem incepit, stadio Tithonio perfecto, et abhinc milies milium circiter 139.8 annorum ad finem venit, stadio Valanginio incipiente, secundum scalam aevorum geologicorum Commissionis Internationalis Stratigraphicae.[3]
Nomen capit ab oppido Francico Berrias.
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