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2. The Cambrian substrate revolution;Bottjer,2000
3. Invertebrates;Brusca,2002
4. Terminal proterozoic–Early Cambrian ecosystems: ichnology of the Puncoviscana Formation, Northwest Argentina;Buatois;Fossils Strata,2004
5. Ichnology: Organism-Substrate Interactions in Space and Time;Buatois,2011