Behforouzi, Elham, and Amrollah Safari. 2014. “Biostratigraphy and Paleoecology of the Qom Formation in Chenar Area (northwestern Kashan), Iran”. Revista Mexicana De Ciencias Geológicas 28 (3). https://rmcg.geociencias.unam.mx/index.php/rmcg/article/view/191.