How the discovery of geologic time changed our view of the world , ORGANIZATION@1 In NUMBER@1 , the ORGANIZATION@2 -LRB- now the ORGANIZATION@3 -RRB- started an effort to define global references -LRB- Global Boundary Stratotype Sections and Points -RRB- for geologic periods and faunal stages .

In NUMBER@1 , the ORGANIZATION@2 -LRB- now the ORGANIZATION@3 -RRB- started an effort to define global references -LRB- Global Boundary Stratotype Sections and Points -RRB- for geologic periods and faunal stages .
