Some Unknown Arcid Bivalves from the Turonian (Late Cretaceous) of Central India

Five arcid bivalves have been recorded for the first time from the Turonian (Late Cretaceous) sediments exposed in the form of the Nodular Limestone Formation of the Bagh Group, Lower Narmada Basin of central India. These benthic bivalves are represented by Barbatia (Cucullaearca) cf. clellandi Stoliczka, Breviarca baghensis sp. nov. , Glycymeris sp. , Trigonarca camerunensis Riedel, Trigonarca galdrina dOrbigny and Grammatodon cf. japeticum Forbes. All these five species have been systematically described with remarks on their occurrences outside the Narmada Basin.