Rotaliine Foraminiferida from the type section of the Atherfield “Group” (Lower Aptian), Isle of Wight, U.K.

Abstract. A preliminary study has been made of the Foraminiferida fauna of the type section of the Atherfield “Group” on the Isle of Wight. The fauna is sparse but diagnostic of the Lower Aptian as defined by faunas worldwide. This paper describes and illustrates the rotaliine Foraminiferida fauna and complements a previous publication describing and illustrating the textulariine fauna.