A New Period for the Geologic Time Scale

See allHide authors and affiliations

Science  30 Jul 2004:
Vol. 305, Issue 5684, pp. 621-622
DOI: 10.1126/science.1098803

You are currently viewing the summary.

View Full Text

Log in to view the full text

Log in through your institution

Log in through your institution


The geologic time scale is in need of an update, given that the last modification took place in 1891. In their Perspective, Knoll and colleagues announce the proud addition of a new interval to the geologic time scale, the Ediacaran Period, by the International Union of Geological Sciences.