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The Mari Mari Group is an Eifelian to Frasnian geologic group of the Amazon Basin in the state of Amazonas of northwestern Brazil. The group comprises shales and sandstones.[1]

Fossil content

The formation has provided fossils of Tentaculites sp., foraminifera and ostracods.[1][2]

References

  1. ^ a b Mari Mari Group at Fossilworks.org
  2. ^ Melo, 1988

Bibliography

  • Melo, J. H. G. 1988. The Malvinokaffric realm in the Devonian of Brazil. N. J. McMillan, A. F. Embry, and D. J. Glass, eds. Devonian of the World, Volume I, 669–703. Canadian Society of Petroleum Geologists. Calgary, Alberta, Canada.
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