Iraq Western Desert

The hiatus associated with the so-called Hercynian unconformity (also known as the ‘Late Carboniferous unconformity’ or ‘pre-Unayzah unconformity’) in western Iraq appears to be associated with non-deposition or erosion of rocks corresponding approximately in age to part of the Serpukhovian and Bashkirian (latest Mississippian to early Pennsylvanian). Read more - Stephenson, M H, Kader Al-Mashaikie, S Z A, and Kurukchi, W M. 2016. Palynological assemblages across the Hercynian unconformity in Western Iraq. Revue de Micropaleontologie, 60, 417-432.