%0 Journal Article %T O G¨ºnero Pholadomya Sowerby, 1823 (Mollusca: Bivalvia) na Forma o Janda¨ªra (Cret¨¢ceo Superior), Bacia Potiguar: Implica es Paleoecol¨®gicas e Paleogeogr¨¢ficas. %A Natalia Pereira Benaim %A Maria C¨¦lia Elias Senra %J Anu¨¢rio do Instituto de Geoci¨ºncias %D 2008 %I Universidade Federal do Rio de Janeiro %X Pholadomya Sowerby, 1823 is an anomalodesmatan bivalve that dispersed during Mesozoic, like other Mollusks,colonizating the South Atlantic shallow seas, between Brazil and Africa. On brazilian Cretaceous the sources ofPholadomya are scarce, occurring in outcrops from Algod es Formation, Gramame Formation and Janda¨ªra Formation,where occurs the species Pholadomya baixaleitensis. Based on specimens from new outcrops of Janda¨ªra Formation,a new occurrence of P. cf. adversa and P. baixaleitensis are shown and a new morfotype for the genus is described. Itwas possible to infer that the species studied presented deep endobentonic habits, and burrowed slowly the sediment,probably living their whole life into the same cavity. During Campanian Pholadomya is known from Cameroon, France,Poland, Austria, Germany and other localities in United States of America, occurring in association with other tethyanmollusks. The records of the genus in the marginal equatorial basins enhance the fossil bivalve diversity, and agree withthe hypotesis of a south latitudinal range for the Tethyan Realm during Upper Cretaceous. %K Potiguar Basin %K Upper Cretaceous %K bivalves %K Pholadomya %U http://www.anuario.igeo.ufrj.br/anuario_2008_1/2008_1_88_97.pdf