Presence of the foraminifer Chapmanina gassinensis Silvestri, 1931, in the Eocene (Lutetian) of the Grignon “falunière” (Yvelines, Paris Basin). The genus Chapmanina, its species and world distribution

Armelle Poignant

doi:10.5252/geodiversitas2018v40a17

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30 August 2018 Presence of the foraminifer Chapmanina gassinensis Silvestri, 1931, in the Eocene (Lutetian) of the Grignon “falunière” (Yvelines, Paris Basin). The genus Chapmanina, its species and world distribution

Armelle Poignant

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Geodiversitas, 40(3):461-470 (2018). https://doi.org/10.5252/geodiversitas2018v40a17

Abstract

Chapmanina gassinensis (foraminifer) has been observed as it seems for the first time in the Lutetian of the “falunière” of Grignon (Yvelines, southwestern Paris Basin). It is widespread in the Eocene of western Europe, also present in the Tethysian domain l.s. and even across the Atlantic. In the Oligocene, it becomes very rare and has been only found in some places of Mediterranean Europe and disappears in the Miocene. The Paris Basin seems to be its northernmost occurrence.

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Armelle Poignant "Presence of the foraminifer Chapmanina gassinensis Silvestri, 1931, in the Eocene (Lutetian) of the Grignon “falunière” (Yvelines, Paris Basin). The genus Chapmanina, its species and world distribution," Geodiversitas 40(3), 461-470, (30 August 2018). https://doi.org/10.5252/geodiversitas2018v40a17

Received: 6 July 2017; Accepted: 3 April 2018; Published: 30 August 2018

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