Les Bivalves et Gastéropodes du Bruxellien inférieur de la Belgique (Eocène moyen)

This paper presents a systematic revision of the Bivalvia and Gastropoda from the Aalter Sands (at Aalter, province of Oost-Vlaanderen) and the first description of those from the Oedelem Sands (at Oedelem, province of West-Vlaanderen). Both horizons are of Middle Eocene age. Together they form the lower part of the Bruxellian (Bl or Formation of den Hoorn). The Oedelem Sands with Venericardia carinata are the older part of this formation, whereas the Aalter Sands with Megacardita planicosta lerichei are its upper (and younger) part. 68 bivalve species have been identified from the B1 beds, mo... Mehr ...