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Journal of Micropalaeontology An open-access journal of The Micropalaeontological Society
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Volume 30, issue 1
J. Micropalaeontol., 30, 11–16, 2011
https://doi.org/10.1144/0262-821X10-025
© Author(s) 2011. This work is distributed under
the Creative Commons Attribution 4.0 License.
J. Micropalaeontol., 30, 11–16, 2011
https://doi.org/10.1144/0262-821X10-025
© Author(s) 2011. This work is distributed under
the Creative Commons Attribution 4.0 License.

  01 May 2011

01 May 2011

The new foraminiferal genus Ammogloborotaloides n. gen. and subfamily Ammogloborotaloidinae n. subfam. from the Neogene of Venezuela: an example of isomorphism between agglutinated and planktonic Foraminifera

Michael A. Kaminski1 and Jime Contreras2 Michael A. Kaminski and Jime Contreras
  • 1Earth Sciences Department, King Fahd University of Petroleum & Minerals Dhahran, 31261, Saudi Arabia
  • 2PDVSA Geological Laboratory ‘La Concepcion’, Campo OLeary, Edificio Laboratorio y Nucleoteca Oficina No. 5, La Concepcion, Zulia State, Venezuela

Keywords: foraminifera, Ammogloborotaloides n. gen., Venezuela, Miocene

Abstract. We report the occurrence of two new species of the new agglutinated foraminiferal genus Ammogloborotaloides in the Miocene of western Venezuela. These two taxa have been assigned informal names and have been known to the petroleum industry in Venezuela for many years, but have never been described. A. truncatulinoidiformis n. sp. is the type species and the second species, A. sp. 16, is left in open nomenclature. The two species of Ammogloborotaloides are strongly isomorphic with the planktonic foraminiferal species Globorotalia truncatulinoides and Globorotalia crassaformis, and illustrate the possible evolutionary connections between agglutinated benthics and the planktonic foraminifera.

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