Writers : Motamedaishariati,Mraym;Raisossadat, Seyed Naser
Refference : 9th symposium of geological society of Iran, Tehran, Teacher Training university
Publishing Year : 1384

Abstract :
The study area is located north of Birjand and is a part of Sistan Suture zone. in this study, ichnofossils of the Paleocene-Eocene flysch sediments have been investigated. The studied succession begins with basal conglomerate and follows with shale, marl and limestone beds. The upper part of sequence is composed of numerous interbedded shale and sandstone (flysch type sediments) that contain a lots of ichnogenera . The following ichnogenera have been identified
Cosmorhaphe sinuosa, Cosmorhaphe isp., Goickeria sp., ftalopoaisp. (Fucusopsis sp.), Helminthoida sp., Helminthorhaphae japonica, Megagrapton irregularis, Megagrapton isp. 1, Nerites isp., Ophiomorpha
annulata, Ophiomorphae sp., Paleodictyon mnajus, Paleodictyon strozii, Paleodictyon isp., Paleophycus isp., Planolites sp., Sccmlicja prisca, Scolicia strozzii, Scolicia isp. 1, Scolicict isp.2, Scoljcja isp.3, Skolithos isp., Spirophycus isp., Subphyllochorda isp., Thalassjnojcjes isp. and Urohelmjnthojda appendiculata
The paleoecologjcal factors such as the oxygen and depth of basin have been interpreted based on identified ichnogenera and their abundance. Moreover the ethological behaviors of ichnofossils have been studied.
Subject List : Ichnofossil