Fig. 5From: The (Paleo)Geography of Evolution: Making Sense of Changing Biology and Changing Continents(After Meert and Lieberman 2008) Timeline of Gondwana assembly and major “events” in Earth history during the Ediacaran–Cambrian interval. Blue shading shows the approximate number of genera present during the late Ediacaran through Late Cambrian. Major faunal developments are tied to the timeline along with tectonic, climatic, catastrophic events. Abbreviations used: GRB, Gamma ray burst; T. Pedum, Treptichnus pedum trace fossil; SSF's, small shelly fossils; BIF's, banded iron formation, P 2 O 5 , phosphatic horizons; IITPW, Intertial Interchange true polar wander; LIP, large igneous provinceBack to article page