http://reply.papertrans.cn/3/240/23976/23976-31.png
http://reply.papertrans.cn/3/240/23976/23976-32.png
Submitted on: 23 April 1999.
Revised on: 17 May 1999.
Accepted on: 04 June 1999.
Palaeobiodiversity and Palaeoenvironments
http://reply.papertrans.cn/3/240/23976/23976-34.png
Submitted on: 20 February 2009.
Revised on: 25 March 2009.
Accepted on: 07 April 2009.
Palaeobiodiversity and Palaeoenvironments
http://reply.papertrans.cn/3/240/23976/23976-36.png