Vaziri, M. R.; Arab, A. L. Morphological Variations, Patterns of Frontal Ambulacrum Pores and Paleoecology of Heteraster Renngarteni Poretzkaja (Echinoidea: Spatangoida) from Aptian Sediments of Baghin Area, Kerman, Iran: Morphology of Heteraster Renngarteni from Iran. Pakistan Journal of Scientific & Industrial Research 2011, 54, 41-46.