Middle Jurassic record of the limnic ostracode genus <i>Rosacythere</i> (Limnocytheridae, Timiriaseviinae): implications on the origin and evolution of the <i>Kovalevskiella</i> group

Colin, J.-P.; Carbonel, P.

doi:https://doi.org/10.1144/jm.15.2.187

Articles | Volume 15, issue 2

https://doi.org/10.1144/jm.15.2.187

© Author(s) 1996. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.1144/jm.15.2.187

© Author(s) 1996. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 15, issue 2

01 Oct 1996

| 01 Oct 1996

Middle Jurassic record of the limnic ostracode genus Rosacythere (Limnocytheridae, Timiriaseviinae): implications on the origin and evolution of the Kovalevskiella group

J.-P. Colin and P. Carbonel

Abstract. Two species of the limnic ostracode genus Rosacythere Colin (Limnocytheridae, Timiriaseviinae) have been identified in the uppermost Bajocian (Middle Jurassic) of the southern part of the Paris Basin, France. This record is the earliest for this genus and for the ‘Kovalevskiella group’ of Colin & Danielopol (1978 Colin & Danielopol (1980). This study also confirms that most of the Timiriaseviinae morphological groups really started to diversify during the Middle Jurassic.