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Submitted on: 17 June 2008.
Revised on: 25 July 2008.
Accepted on: 31 July 2008.
PALEOBIOLOGY
Submitted on: 03 September 2010.
Revised on: 04 October 2010.
Accepted on: 20 October 2010.
PALEOBIOLOGY---CAMBRIDGE UNIV PRESS
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http://reply.papertrans.cn/3/240/23996/23996-15.png
Submitted on: 15 September 2003.
Revised on: 28 October 2003.
Accepted on: 21 November 2003.
PALEOBIOLOGY---CAMBRIDGE UNIV PRESS
http://reply.papertrans.cn/3/240/23996/23996-17.png
http://reply.papertrans.cn/3/240/23996/23996-18.png
Submitted on: 06 February 2003.
Revised on: 08 March 2003.
Accepted on: 01 April 2003.
PALEOBIOLOGY---CAMBRIDGE UNIV PRESS
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