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Submitted on: 04 May 2009.
Revised on: 09 June 2009.
Accepted on: 25 June 2009.
Palaeobiodiversity and Palaeoenvironments
Submitted on: 19 September 2003.
Revised on: 02 November 2003.
Accepted on: 15 November 2003.
Palaeobiodiversity and Palaeoenvironments
Submitted on: 31 August 2008.
Revised on: 13 October 2008.
Accepted on: 29 October 2008.
Palaeobiodiversity and Palaeoenvironments