Permian and Early Triassic conodonts from Northwest Peninsular Malaysia

Abstract

Limestone exposed at Gunong Kering, Kedah, have yielded conodonts representative of the Early Permian (Wolfcampian) Neogondolella bisselli-Sweetognathus whitei and Early Triassic (Smithian) Neospathodus waageni Zones. The Kodiang limestone exposed at Bukit Hantu near Kodiang, kedah has yielded conodonts representative of the Late Permian (Capitanian) Neogondolella rosenkrantzi-Neospathodus divergens Zone and species Neospathadus characteristics of the Early Triassic. The Permian-Triassic boundary is for the first time recognised in exosed sections in Malaysia. Since the Kodiang Limestone is shown to extend down into the Permian, it is considered probable that it is continuous with the underlying Chuping Limestone. The Middle and Late Permian appear to be absent at Gunong Keriang, being cut out by an unconformity or non-sequence.