Pseudorhapydionina bilottei sp. nov., an endemic foraminifera from the post-Cenomanian/Turonian boundary (Pyrenees,NE Spain) |
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| Institution: | 1. University Lille 1, Department of Earth Sciences, CNRS-UMR 8217 Géosystèmes, SN5, 59655 Villeneuve d''Ascq, France;2. University of Athens, Department of Geology & Geoenvironments, Panepistimiopolis-Zografou, 15784 Athens, Greece;3. Institute of Geological Sciences, National Academy of Sciences of Armenia, 24a Baghramian Av., Yerevan 375019, Republic of Armenia;4. University of Nice-Sophia Antipolis, CNRS-UMR Géoazur, France;5. Catholic University of Lille, CNRS-UMR 8217 Géosystèmes, 59000 Lille, France |
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| Abstract: | A new species of the foraminiferal genus Pseudorhapydionina is reported from the Santonian shallow-water carbonate and mixed deposits of La Cova Unit, in the Montsec and Pedraforca thrust sheets (Southern Pyrenees, NE Spain). Pseudorhapydionina bilottei sp. nov. differs from the Cenomanian species of the genus in its larger test size and the number of chambers in its early planispiral-involute stage. The discovery of P. bilottei sp. nov in the Santonian indicates that the genus Pseudorhapydionina escaped extinction during the Cenomanian-Turonian boundary (CTB) event in the Pyrenean bioprovince. A new subfamily Pseudorhapydionininae is described. |
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| Keywords: | Foraminifera Cenomanian-Turonian extinction Late Cretaceous Pyrenees |
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