Norian Stage - definition of Norian Stage by The Free Dictionary
Norian (redirected from Norian Stage)
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|a.||1.||(Geol.) Pertaining to the upper portion of the Laurentian rocks.|
References in periodicals archive
Spray and his colleagues suggest a tentative link between the impacts and an earlier wave of extinctions, which occurred at the boundary between the Carnian and Norian stages
of the Triassic.