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Monospecific biostromes in the Campanian-Maastrichtian

Paleoenvironmental significance of the monospecific biostromes in the Campanian-Maastrichtian Duwi Formation (Eastern Desert, Egypt)

  • Four monospecific biostromes recorded in the Campanian-Maastrichtian Duwi Formation of Egypt.
  • The taphonomic features were quantitatively analyzed (multivariate analysis, shell size and orientation).
  • The oyster parabiostromes occupy early TST, while the heterodont bivalve autobiostromes occupy MFZ.
  • The monospecific nature is interpreted to be a consequence of high productivity and associated anoxia.

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