Tehran University of Medical Sciences Iranian Journal of Parasitology 1735-7020 9 2 2014 06 15 188 193 EN Gholamreza Mowlavi Department of Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran AND Center for Research of Endemic Parasites of Iran (CREPI), Tehran University of Medical Sciences, Tehran, Iran. Mahsasadat Makki Department of Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran. Iraj Mobedi Department of Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran. Adauto Araujo Escola Nacional de Saúde Pública, Fundação Oswaldo Cruz, Rio de Janeiro, RJ, Brasil (Brazilian Shool of Public Health, Oswaldo Cruz Foundation). Abolfazl Aali Archaeological Museum of Zanjan, Zanjan, Iran. Thomas Stollner Ruhr Universität Bochum, Institut für Archäologische Wissenschaften, Bochum, Germany & German Mining Museum Bochum, Department Mining Archaeology, Bochum Germany. Mostafa Rezaeian Department of Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran AND Center for Research of Endemic Parasites of Iran (CREPI), Tehran University of Medical Sciences, Tehran, Iran. Nicole Boenke Ruhr Universität Bochum, Institut für Archäologische Wissenschaften, Bochum, Germany & German Mining Museum Bochum, Department Mining Archaeology, Bochum Germany. Gholamreza Hassanpour Center for Research of Endemic Parasites of Iran (CREPI), Tehran University of Medical Sciences, Tehran, Iran. Mohammad Masoumian Faculty of Literature and Humanities, Tehran university,Tehran Iran. 2015 10 14 Background: In this paper, paleoparasitological findings from rodent excrements ob-tained from Chehrabad Salt Mine archeological site located in northwest of Iran are demonstrated and discussed. Methods: Chehrabad Salt Mine archeological site located in northwest of Iran, dated to the Achaemenid (mid 1st mill. BCE) and to Sassanid (3rd cent. - 7th cent. CE) period, is a unique study area to investigate parasites in the past millenniums in Iran. Rodent cop-rolites obtained from this archeological site were thoroughly analyzed for parasite eggs using TSP re-hydration technique. Results: Specimen analyzed were attributed to juvenile and adult rats based on their apparent morphology comparing with the modern dried pellets of Muridea family. Hel-minth eggs retrieved from two positive pellets were identified as Trichosomoides crassi-cauda, Syphacia sp. and Trichuris sp. Conclusion: The present paper discusses the first paleoparasitological findings of ro-dent gastrointestinal helminthes in Iran along with possible favorite items to rats in ancient Chehrabad Salt Mine. https://ijpa.tums.ac.ir/index.php/ijpa/article/view/414 https://ijpa.tums.ac.ir/index.php/ijpa/article/download/414/330