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  Paleontology
Calcareous Nannofossils of Iran
Author : Fatemeh Hadavi
Publisher date : October 2002
Chapter title : First Chapter - Nannofossils
Data title : Triquetrorhabdulus

Triquetrorhabdulus: this genus has rode shape nannolithus which has three protuberant ridges which have been located with an angle of 120 related to each other and they are round at the end . This genus is seen only in cenozoic (fig 30 B).




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