Discovery of an Early Permian (Late Sakmarian) ammonoid from Langkawi Island, Malaysia

This paper describes a single specimen of Metalegoceras sp. recently discovered from the upper part of the Singa Formation at Batu Asah on the main Langkawi Island off the northwestern coast of Peninsular Malaysia. The discovery represents the first report of a Permian ammonoid from the island and from the Singa Formation and confirms a Sakmarian (Early Permian) age for this part of the formation suggested by brachiopods.