Decapod crustaceans from the lower Miocene Qom Formation of the Isfahan area, Central Iran[Crustáceos decápodos de la Formación Qom del Mioceno inferior en el área de Isfahan, Irán central]

Abstract

From the lower Miocene (Burdigalian) of the Qom Formation, exposed in threesections (Kuh-e-Donbeh, Bagher-Abad,and Vartun) in Central Iran, a decapodcrustacean assemblage is described. Thespecimens exhibit two modes of preservation:carapaces (either isolated orwith attached appendages) and isolatedcheliped elements. All studied specimensare fractured and/or eroded. Based onthis moderately preserved material, threebrachyuran crab taxa are identified,including Mursia cf. lienharti (Bachmayer,1962), Palaeocarpilius rugifer Stoliczka, 1871,and Necronectes sp. The occurrence of P.rugifer represents the youngest confirmedoccurrence of the species, whereas othertwo taxa represent the first confirmedIranian occurrences of respective genera.This report enriches our knowledge onMiocene decapod assemblages of Iran,and thus helping to better understandthe decapod migratory patterns along theTethyan Seaway © 2021. Boletín de la Sociedad Geológica Mexicana. All Rights Reserved.