Recalibrating the Devonian Time Scale

Three new timescales for the Devonian.

Three new timescales for the Devonian.

The biotic, climatic, and tectonic events of the Devonian cannot be correlated and investigated without a well-calibrated time scale. In our new paper out today lead by Claire Harrigan we recalibrated the Geologic Time Scale for the Devonian using three different conodont bio zone schemes, new U-Pb geochronology and a new approach to integrating Bayesian age depth modeling and astrochronologic constraints. The paper is available now in GSA Bulletin, and the modeling code is available on Github.

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