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ISSN 1527-1404
EISSN 1938-3681
In this Issue
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    Cover Image

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    COVER EXPLANATION.—Shell of the gastropod mollusk Heleobia australis, which is found in great abundance among the matrix of modern microbialites from Lagoa Salgada, Rio de Janeiro, Brazil. This bioclast represents high bioturbation and predation of microrganisms that composed the stromatolytic system, illustrating the influence of metazoans on the development of microbialites. See Ricardi-Branco et al., this issue.

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