New record of Discradisca (Brachiopoda: Discinidae) from the Early Miocene of the Aquitaine Basin, south-western France

The linguliform inarticulate brachiopod genus Discradisca Stenzel, 1964 has been identified for the first time from the Early Burdigalian (Early Miocene) sandy deposits of the Aquitaine Basin, south-western France. The species studied here, D. multiradiata (de Morgan, 1915), originally described from the Middle Miocene of the Loire Basin, north-western France, is characterized by a small size, ornamentation of numerous (up to 100), fine but distinct and beaded tuberculate ribs, and an apex situated subposteriorly to subcentrally. The ecological and taphonomic aspects of this species are also presented. The attribution of some previously described Discinisca Dall, 1871 species from the Tertiary to the genus Discradisca is discussed.