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The foraminifera of the mid visean v 2a in the environs of dinant belgium


, : The foraminifera of the mid visean v 2a in the environs of dinant belgium. Annales de la Societe Geologique de Belgique 99(1): 109-142

Six sections situated in the type area of the "Calcaire de Neffe" [Belgium] are described. The micropaleontological assemblage of the formation is examined and compared with those of biozones V1b, V2b and the transitional beds between it and these 2 zones. The vertical extension of the V2a biozone is discussed. The zone is characterized by its algae, its Endothyracea and its Fusulinacea. Its affinities are more clearly with V1 than with V2b. New foraminiferans described are: Palaeospiroplectammina longula Laxoseptabrunsiina (SPINOLAXINA ) pauli subgen. et comb. nov., L. (S.) kaisini sp. nov. and Endothyra levis sp. nov.

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