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.