%0 Journal Article %T Morphological and systematic interpretation of some Late cretaceous (Turonian-Santonian) irregular echinoids, Kopet-dagh Basin, NE Iran %A J. Noorbakhsh Razmi %A A. A. Aryaei %A Taherpour Khalil Abad %A Ashouri, Ali Reza %J Journal of Sciences, Islamic Republic of Iran %@ 1016-1104 %D 2013