Calcareous Nannofossil Genus Scyphosphaera: Structure, Taxonomy, Biostratigraphy, and Phylogeny

  title={Calcareous Nannofossil Genus Scyphosphaera: Structure, Taxonomy, Biostratigraphy, and Phylogeny},
  author={William G. Siesser},
  • W. G. Siesser
  • Published 24 January 1998
  • Environmental Science
  • Micropaleontology
Scyphosphaerids are frequently encountered in low-latitude Miocene-Pliocene sediments. The genus first evolved in the early Eocene (calclcareous nannofossil Zone NP12), but abund diversityance and diversity remained low until middle Miocene Zones NN5-NN6, when global radiation began. More new species (24) evolved during the Miocene NN5-NN6 and NN9 zonal intervals than at any other time. The abundance acme for the genus is the late Miocene (NN9)-late Miocene NN9-late Pliocene (NN15) interval… 
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  • M. Aubry
  • Environmental Science, Geography
  • 2009
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