Document Type : Original Research Paper

Authors

1 Ph.D. Student, International Campus, Ferdowsi University of Mashhad, Mashhad, Iran

2 Assistant Professor, Department of Geology, Payame Noor University, Iran

3 Associate Professor, Department of Geology, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran

Abstract

This paper describes systematic of the foraminifera from Howz-e Khan Member of Nayband Formation in 25km south of the type locality which are exposed in northwest of the Dig-e Rostam area about 300km north of Kerman city and is composed of medium to thick bedded fine-grained limestones containing sponges, dasycladales algae, bivalves, corals and partly abundant upper Triassic foraminifera ofNorian-Rhaetian ages which are mainly of aulotortid types. The following foraminifera taxa are described: Auloconuspermodiscoides, Aulotortus friedli, Aulotortus tenuis, Aulotortus tumidus, Aulotortus sinuosus, Duotaxis birmanica, Tetrataxis inflata, Agathammina austroalpina, Miliolipora cuvillieri, Planiinvoluta sp., Ophthalmidium leischneri, Ophthalmidium exiguum, Glomospirella sp., Trochammina alpina, Diplotremina astrofimbriata, Diplotremina subangulata, Duostomina sp., Nodosaria sp1., Nodosaria sp2., Pseudonodosaria sp., Austrocolomia sp., Sigmoilina schaeferae, Reophax tauricus. In this paper relation of foraminifera with reefs and carbonate layerthat are generally typical of low energy, bay or lagoon-type, on shallow carbonate ramps and reef facieshas been studied.

Keywords