Summary Cyprus lies in the eastern Mediterranean region and its northern (Kyrenia) mountain range, trending approximately west-east and thrust to the south, forms part of the southernmost loop of the Tauric arc of Suess, which extends towards the north-east through Hatay (Alexandretta) and north-western Syria. The island is divisible into the following belts, trending approximately west-east and differentiated by their geomorphology and stratigraphy. (1) A narrow, northern, coastal belt of Upper Senonian, Eocene, Miocene and Pliocene marine sediments dipping unconformably off the Kyrenia range to the south. (2) The Kyrenia mountain-range with upthrust slices of Triassic red beds and radiolarites, slightly metamorphosed Jurassic limestones, green igneous rocks, and tectonically displaced, unconformable younger sediments. (3) The Mesaoria plain, with sharply folded, marine foredeep deposits ranging at least from Upper Cretaceous to Pliocene, and unconformably overlapping the south flank of the Kyrenia range. (4) The central, basic igneous massif of the Troodos mountains, with plutonic, hyperbyssal and eruptive rocks, giving evidence of recurrent igneous activity in Mesozoic and (?)Tertiary times. Eocene to Pliocene marine sediments of the Mesaoria basin overlap unconformably on the north flank of Troodos. (5) The southern foothill belt of buckled Upper Senonian, Eocene, Miocene and Pliocene marine beds, flanking Troodos unconformably to the south and exposing intensely faulted inliers of Triassic red beds, limestones, contorted radiolarites, and contemporaneous volcanic rocks. Post-Triassic basic igneous extrusions penetrate these inliers. Thus the exposed geology of Cyprus shows marine Upper Cretaceous and Tertiary sediments resting unconformably on a Mesozoic (pre-Cretaceous) foundation. Kober (1915) includes the island in the border zone of the Tauric nappes, but the authors regard Cyprus, south of the Kyrenia range, as a fragment of the Syrian foreland now separated by submerged graben from its continuation on the Syrian mainland, which it resembles in its stratigraphy. The stratigraphy has been considerably revised in detail. Marine sedimentary cycles, separated by unconformities, were as follows : Triassic-Jurassic, with some doubt as to the relationship between formations of the two periods; Upper Senonian-Oligocene, with a local regression between Maestrichtian and Lutetian; Miocene, with a transgressive maximum in Vindobonian times; Pliocene, with an intermediate regression. The main thrusting of the Kyrenia range corresponds with the Savian and Attic movements; general emergence followed the Pliocene. Volcanic activity occurred in the Triassic, Jurassic-Middle Cretaceous interval, Senonian, and Vindobonian (slight).