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1. Punctuationlism and Gradualistic Evolutionary Trends of Eight Phylogenetic Lineages of Maastrichtian to Eocene and Recent Benthic Foraminifera from the Tethys

Haidar Salim Anan

Volume 31, Issue 1 , Winter 2020, , Pages 63-73

http://dx.doi.org/10.22059/jsciences.2020.272232.1007353

Abstract
  Minor differences in the morphology of the test, wall structure, arrangement of chambers and apertures, size are recognized as being of decisive specific or subspecific value. Twenty four phylogenetic lineages were produced by puncuated equilibrium and gradualistic evolutionary trends which observed ...  Read More