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Corumbella werneri Corumbella werneri Hahn et al., 1982 was dated at the Ediacaran period (ca. 543 million years ago) and originally documented in Brazil (Corumbá Group), as a kind of fixed life form of cnidarian medusas, characterized by an elongated polyhedral tube, formed by a relatively thick carapace [Pacheco et al., 2011 http://www.journaltaphonomy.com/JT-articles/2011/issue4/jt-122NATI.pdf]. Corumbella was also one of the first known animal capable to build a real skeleton [Pacheco et al., 2011; Pacheco, 2012; Warren et al., 2012] which would be one major step in the context of ocean chemical changes and feedback links attributed to the evolution of animal skeletogenesis, such as predator/prey, that must ensured selective pressures revealed on new balancing ecosystem factors that triggered high rates of evolution and diversity, and ended up in an explosive appearance of new animal species.

PACHECO, M. L. A. F. Reconstituição morfológica e análise sistemática de Corumbella werneri Hahn et al. 1982 (Formação Tamengo, Ediacarano, Grupo Corumbá), Mato Grosso do Sul, Brasil: implicações paleoecológicas e tafonômicas. 2012. PhD Thesis – Instituto de Geociências, Universidade de São Paulo, São Paulo.

Pacheco, M. L. A. F., Leme, J.M. and Machado, A.F. 2011. Taphonomic analysis and geometric modelling for the reconstitution of the Ediacaran metazoan Corumbella werneri Hahn et al. 1982 (Tamengo Formation, Corumbá Basin, Brazil). Journal of Taphonomy, 9(4): 269-283. http://www.journaltaphonomy.com/JT-articles/2011/issue4/jt-122NATI.pdf

Warren,L.V., Pacheco, M.L.A.F., Fairchild, T.R., Simões, M.G., Riccomini, C., Boggiani, P.C. and Cáceres, A.A. 2012. The Dawn of animal skeletogenesis: ultrastructural analysis of Ediacaran metazoan Corumbella werneri. Geology, 40 (8): 691–694.