perforata definition

  • noun-plural:
    • A division of corals including those that have a porous surface, as Porites and Madrepora; -- in opposition to Aporosa.
    • A division of Foraminifera, including those having perforated shells.
  • others:
    • one of many teams into which Edwards and Haime (1850) divide the corals: distinguished from Aporosa, Tabulata, and Rugosa. It includes the Madreporidæ, Poritidæ, etc. also referred to as Porosa.
    • The perforate foraminifers, a big team (subclass, purchase, or suborder) of filose protozoans inclosed in a test perforated with many foraminules aside from the primary orifice, through that the thready pseudopods may protrude: opposed to Imperforata. Leading types will be the Textulariidæ, Lagenidæ, Globigerinidæ, Rotaliidæ, and Nummulinidæ.

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