Revue de Paléobiologie, Genève (juin 2019) 38 (1): 151-228 ISSN 0253-6730 Cenomanian–Turonian (Cretaceous) heterodont bivalves from the Sergipe Basin, Brazil Wagih S. AYOUB-HANNAA1, Peter BENGTSON2, Franz T. FÜRSICH3 & Edilma J. ANDRADE4 1 Geology Department, Faculty of Science, Minufiya University, El-Minufiya, Shibin El Kom, Egypt. Current address: GeoZentrum Nordbayern, Fachgruppe PaläoUmwelt, Friedrich-Alexander Universität Erlangen-Nürnberg Loewe- nichstr. 28, D-91054 Erlangen, Germany. E-mail: [email protected] 2 Institut für Geowissenschaften, Universität Heidelberg, Im Neuenheimer Feld 234, D-69120 Heidelberg, Germany. E-mail: [email protected] 3 GeoZentrum Nordbayern, Fachgruppe PaläoUmwelt, Friedrich-Alexander Universität Erlangen-Nürnberg Loewe- nichstr. 28, D-91054 Erlangen, Germany. E-mail: [email protected] 4 Departamento de Geologia, Universidade Federal de Sergipe (UFS), Cidade Universitária, Campus Prof. José Aloísio de Campos, Avenida Marechal Rondon s/n – Jardim Rosa Elze, 49100-000 São Cristóvão, SE, Brazil. E-mail: [email protected] Abstract Fifty heterodont bivalve species, belonging to 35 genera, 15 families and six orders, from the Cenomanian–Coniacian Cotinguiba Formation of the Sergipe Basin, north-eastern Brazil, are systematically described and figured. Thirty-three species are recorded from the basin for the first time. The new species Callucina (C.) itaporangensis sp. nov. from the lower Cenomanian is characterised by its heart-shaped to sublanceolate and slightly asymmetric lunule, narrow, shallow and elongated escutcheon, widely spaced commarginal ribs crossed by faint radial striations, rod-like anterior adductor muscle scar (separated ventrally from the pallial line) and straight postero-dorsal and posterior margins with an angular junction. The fauna shows little endemism, which indicates that the larvae were long-lived and possessed a high dispersal potential. The fauna occurred across a wide geographic area, from the Middle East, northern Africa and southern Europe to western Africa and the Pacific rim of South America, with some taxa also known from India. The bio- geographic pattern suggests that many groups migrated via the trans-Saharan seaway, which connected the southern Tethys with the incipient South Atlantic Ocean. Keywords Bivalves, Taxonomy, Palaeobiogeography, Cretaceous, Cenomanian, Turonian, Sergipe Basin, Brazil. Table of contents 1. Introduction .............................................................................................................................................................. 152 2. Location and geological setting ................................................................................................................................ 153 3. Stratigraphy ............................................................................................................................................................... 153 4. Material and methods ................................................................................................................................................ 153 5. Systematic palaeontology ......................................................................................................................................... 156 Genus Crassatella Lamarck, 1799 ............................................................................................................................ 156 Genus Astarte J. Sowerby, 1816 ............................................................................................................................... 158 Genus Tridonta Schumacher, 1817 ........................................................................................................................... 160 Genus Astartemya Stephenson, 1941 ........................................................................................................................ 161 Genus Opis Defrance, 1825 ...................................................................................................................................... 163 Genus Maghrebella Freneix, 1972 ............................................................................................................................ 165 Genus Lucina Bruguière, 1797 ................................................................................................................................. 166 Genus Callucina Dall, 1901 ...................................................................................................................................... 169 Genus Thetis J. de C. Sowerby, 1826 ........................................................................................................................ 172 Submitted April 2018, accepted December 2018 Editorial handling: L. Cavin DOI: 10.5281/zenodo.3265243 152 W. S. AYOUB-HANNAA, P. BENGTSON, F. T. FÜRSICH & E. J. ANDRADE Genus Agelasina Riedel, 1933 .................................................................................................................................. 173 Genus Ambocardia Beringer, 1949 ........................................................................................................................... 174 Genus Protocardia Beyrich, 1845 ............................................................................................................................ 175 Genus Granocardium Gabb, 1868 ............................................................................................................................ 180 Genus Fragum Röding, 1798 .................................................................................................................................... 183 Genus Arcopagella Meek, 1871 ................................................................................................................................ 184 Genus Tellinimera Conrad, 1860 .............................................................................................................................. 185 Genus Arctica Schumacher, 1817 ............................................................................................................................. 185 Genus Etea Conrad, 1875 ......................................................................................................................................... 186 Genus Izumia Ichikawa & Maeda, 1963 ................................................................................................................... 187 Genus Proveniella Casey, 1952 ................................................................................................................................ 188 Genus Schedotrapezium Stewart, 1930 .................................................................................................................... 189 Genus Tenea Conrad, 1870 ....................................................................................................................................... 190 Genus Veniella Stoliczka, 1870 ................................................................................................................................. 191 Genus Venilicardia Stoliczka, 1870 .......................................................................................................................... 193 Genus Trapezium Megerlé von Mühlfeld, 1811 ....................................................................................................... 194 Genus Cymbophora Gabb, 1869 ............................................................................................................................... 194 Genus Geltena Stephenson, 1946 ............................................................................................................................. 196 Genus Mulinoides Olsson, 1944 ............................................................................................................................... 196 Genus Aphrodina Conrad, 1869 ................................................................................................................................ 197 Genus Cyprimeria Conrad, 1864 .............................................................................................................................. 198 Genus Cyclorisma Dall, 1902 ................................................................................................................................... 200 Genus Paraesa Casey, 1952 ..................................................................................................................................... 201 Genus Xylophagella Meek, 1864 .............................................................................................................................. 203 Genus Caestocorbula Vincent, 1910 ........................................................................................................................ 203 Genus Panopea Ménard de la Groye, 1807 .............................................................................................................. 205 6. Palaeobiogeographic remarks ................................................................................................................................... 206 7. Conclusions ............................................................................................................................................................... 206 Acknowledgements ........................................................................................................................................................