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Instituto Geológico
Secretaria do Meio Ambiente do Estado de São Paulo
Av. Miguel Stéfano, 3900
04301-903, São Paulo, SP,
Brasil

William Sallun Filho, geologist, is currently a researcher at the Geological Institute, Environmental Secretariat of the State of São Paulo, Brazil. He obtained his master degree and Ph.D. from the University of São Paulo, Brazil. His scientific interests are in the areas of Precambrian paleobiology, stromatolites, carbonate rocks and karst terrains.

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Departamento de Ciências Biológicas
Faculdade de Ciências
UNESP-Bauru, Av. Eng. Luiz Edmundo Carrijo Coube
s/n, 17033-360, Bauru, SP
Brasil

Renato Ghilardi works on taphonomical and paleoautoecological aspects of Paleozoic invertebrates. He graduated from Universidade Estadual Paulista (UNESP) and obtained his Ph.D. from Universidade de São Paulo (USP). Since 2002, he has been an Assistant Professor at the Universidade Estadual Paulista (UNESP-Bauru). He has published several articles on Brazilian Devonian and Permian formations.

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Universidade Federal do Estado do Rio de Janeiro
Av. Pasteur 458, Bloco III
22290-240, Rio de Janeiro, RJ
Brasil

Loreine Hermida Silva e Silva works with structures present and past stromatolitic carbonates, mainly from hypersaline lagoons. She graduated from Universidade Gama Filho (UGF) and obtained her Ph.D. from Universidade do Brasil (UFRJ). Since 2006, she has been an Associate Professor at Universidade Federal do Estado do Rio de Janeiro (UNIRIO). She has published several articles on Brazilian stromatolites and microbial mats of the Holocene.

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Instituto de Geociências
Universidade de São Paulo
Rua do Lago, 562
05508-080, São Paulo, SP
Brasil 

Jorge Hachiro works on sedimentological and stratigraphical aspects of Brazilian basins. He graduated from the Instituto de Geociências of Universidade de São Paulo (USP) and obtained his Ph.D. from the Universidade de São Paulo. Since 1999, he has been an Assistant Professor at the Universidade de São Paulo. He has published several articles on Brazilian Paleozoic formations.