Abstract

• This paper concerns with the Taungnyo Formation and the Moulmein Limestone from the Zwekabin Range with regard to their biostratigraphy and age according to the Early Permian Brachiopod fauna. Fourteen species belonging to thirteen genera are reported as collected from three localities of the Zwekabin Range. Two new species Verneuilia n.sp. and Vediproductus n.sp. are described. The most common species are Spinomartinia prolifica, Retimarginifera alata, Retimarginifer sp. and Cancrinella sp. together with Productus cf. carbonaricusde Koninck, Kasetia kaseti Waterhouse, Phricodothyris sp., Chonetinella sp., Kutorginella sp., Neospirifer sp., Neochonetes sp. and Spiriferellina sp. The three brachiopod biozones namely as Arctitreta-Bandoproductus Zone, Spinomartinia prolifica Zone and orridonia timanica Zone which are regarded as Early Permian (Sakmarian to Kungurian) in age. The brachiopod fauna from the Taungnyo Formation and the Moulmein Limestone is considered to be equivalent of the early Permian brachiopod from the upper Kaeng Krachan Group and Rat Buri Limestone of Thailand.