求助以下3个文献,是一个外文中的析出的文献!请大家帮忙呀! 1[题名]: Early History of Symbiosis in living Substrates: Trace fossil evidence form the marine Record [作者]:leif tapanila, A.A. Ekdale [来源]trace fossils: Concepts, Problems, Prospects [页码]345-355 [年]2007 2[题名]:Maroborings and the Evolution of Marine Bioerosion [作者]:Mark A. Wilson [来源]trace fossils:concepts, problems, Prospects [页码]:356-367 [年]2007 3[题名]:Microborings and Microbial Endoliths:Geological Implications [作者]:Ingrid Glaud, Stjepko Golubic, Marcos Gektidis, Gudrun Radtke,Klaus Vogel [来源]trace fossils:concepts, problems, Prospects [页码]:368-381 [年]2007
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