Fossils explained 47

that surrounds the Pseudopodia are to and for anchor-age. The ectoplasm and endoplasm remain in contact through the aperture, which is often, but not always, present in the youngest chamber. This article gives an overview of general aspects of foraminiferal biology and palaeontology. As the group is very diverse, especially in morphological and bio-logical aspects, it must be taken into account that there are many exceptions to the general comments that we make herein.