title: Comment on "Major Australian-Antarctic plate reorganization at Hawaiian-Emperor bend time".
abstract: Whittaker et al. (Reports, 5 October 2007, p. 83) presented reconstructions for Australia and Antarctica showing a change in relative plate motion approximately 53 million years ago, coincident with an inferred major global plate reorganization. This comment addresses problematic areas in their assumptions and the geological consequences of their reconstructions.
authors.affiliation: ExxonMobil Upstream Research Company, Post Office Box 2189, Houston, TX 77252-2189, USA. anahita.a.tikku@exxonmobil.com
authors.forename: Anahita A
authors.initials: AA
authors.lastname: Tikku
authors.forename: Nicholas G
authors.initials: NG
authors.lastname: Direen