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First record of Parablackweldria (Cambrian,trilobite) form Laiwu and Xintai,Shandong,China and its stratigraphic significance 文摘
2006
作者:  Xianfeng Yang(杨显峰);  Shanchi Peng(彭善池)
Adobe PDF(581Kb)  |  收藏  |  浏览/下载:160/5  |  提交时间:2017/04/17
Body size trends and energetic constraints predict declining abundance of trilobites in the Ordovician of North America 文摘
2006
作者:  Finnegan. Seth;  Droser, Mary L.
Adobe PDF(109Kb)  |  收藏  |  浏览/下载:369/28  |  提交时间:2015/06/17