%0 Journal Article
%T Cretaceous<br>白垩纪研究
%J 科学观察
%D 2009
%I 
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=01BA20E8BA813E1908F3698710BBFEFEE816345F465FEBA5&cid=96E6E851B5104576C2DD9FC1FBCB69EF&jid=482FA29C88ACD98DBC7B667E04441E34&aid=333D51416D7C892C1B51B7A2C0089A1F&yid=DE12191FBD62783C&vid=E158A972A605785F&iid=38B194292C032A66&sid=4AD960B5AD2D111A&eid=933658645952ED9F&journal_id=1673-5668&journal_name=科学观察&referenced_num=0&reference_num=0