The Eocene-Oligocene transition

This manuscript, entitled "The Eocene-Oligocene transition: a review of marine and terrestrial proxy data, models and model-data comparisons" by Hutchinson et al., is an outstanding review paper worthy of publication in Climate of the Past.This paper makes large strides and provides a comprehensive update to Eocene-Oligocene research as much has been done since the 2007 review of Coxall and Pearson.The authors take a methodical approach, first addressing terminology and a framework for the Eocene-Oligocene, then boundary conditions such as paleogeographic reconstructions, paleoceanography, and constraints on glaciation.Next, the authors move