A note on the discovery of the suturocavate dinoflagellate cyst (Limbodinium absidatum) in the Middle East (Binalud Mountains, NE Iran)

Limbodinium absidatum is a suturocavate dinocyst that is being reported here from the Binalud Mountains, NE Iran, which is also the first record of this rare species from the Middle East. A few specimens of L. absidatum are recorded from samples taken from the Dalichai Formation at a section measured at Ghoroneh. The stratigraphic range of this species (Late Callovian–Early Oxfordian) is very important for Jurassic palynologists. Morphological characteristics of this Sexiform species are described in detail to support the identification.