Monday, April 6, 2015

Dorsoplicathoris dorsoplicata brachiopod from France

This is Dorsoplicathoris dorsoplicata from the Coronatum zone of the Callovian stage of the Jurassic, from near Villequiers, Cher department, France. It has a typical terebratulid shape and features, oval and with a large foramen on the umbo. The anterior margin of the shell is only slightly curved, meeting the side margins at an obtuse angle. That meet point is expressed as a shallow ridge along the surface of the valves pointing back towards the foramen.

Brachial valve
Pedicle valve

Thanks to Gery for the fossil!

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