Abstract:
Permian rocks are widely distributed throughout Myanmar. Because of the tropical-equatorial climate, the rocks are commonly deeply weathered and covered by dense vegetation over much of the region. The temporal increase of the generic diversity can be explained by the northward drift of the Cimmerian continent during Permian time. The scarce occurrence or total absence of these essentially Tethys- indicating fusulinoideans the Sibumasu Block suggests that the eastern Cimmerian Continent was still far from the equatoro-tropical Cathaysian domain and was probably in a warm temperate or subtropical zone until the end of the Permian. The eastern Cimmerian areas finally migrated into a tropical zone by Late Triassic judging in the Kamawkala Limestone of Loikaw area in the Sibumasu Block.
Keywords : Cimmerian Continent; Paleobiogeography; Paleo-Tethys; Permian; Sibumasu Block.
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