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Bowring, Samuel; Grotzonger, John; Condon, Daniel; Ramezani, Jahandar; Newall, Mark. 2009 Reply to comment Oman chronostratigraphy : reply to comment by Erwan Le Guerroué, Ruben Rieu and Andrea Cozzi on "Geochronologic Constraints on the Chronostratigraphic Framework of the Neoproterozoic Huqf Supergroup, Sultanate of Oman”, v. 307, p. 1097–1145. American Journal of Science, 309. 91-96. 10.2475/01.2009.04