Friday, May 23, 2014

Nerinea sp. and Nummocalcar sp. gastropods from France

Today I'm featuring two snail fossils from France. Below is a Nerinea sp. gastropod still embedded in matrix. This specimen comes from near Montreuil-Bellay which is a little south and west of Tours, France. The rock the fossil is embedded within looks very similar to those from the Caen region of France but its from the Callovian stage of the Jurassic (rather than the Bajocian) which means it is younger.

Moving up in the geologic column to the Albian stage of the Cretaceous we have a Nummocalcar sp. (Solarium), from Bellegarde sur Valserine, France which is in the Alps close to the Switzerland border. This is a much more flat or planispiral shell than the elongated, conical shell of Nerinea

Thanks to Gery for sending me these fossils.

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