Foraminiferon

In this process in foraminifera the nuclear fragmentation which Hertwig described in Actinosphaerium, and which Schaudinn identified with “Chromidien”-formation, is evidently the same thing as these processes which Carter and Wallich observed long ago and vaguely interpreted as reproductive processes.[…]In some cases, as for example in Polystomella, the nucleus after fertilization multiplies by division until there are many of them in the young chambers of the developing foraminiferon.

Bailey and Ehrenberg, however, having detected fresh sarcode in the cavities of numerous foraminiferons shells procured from deep-sea bottoms, the one was led to suspect, and the other to conclude, that their animals actually lived in the depth which yielded them.

Specimen of Coral-rock, showing the new Arenaceous Foraminiferon Haddonia torresiensis, occurring in association with a Polytrema.

A well-distributed Cretaceous foraminiferon.[…]Four specimens of this interesting foraminiferon were found in the Cambridge Greensand of Swaffham,[…]

On one hand, foraminifera are complex objects with many morphological variations, and often broken or covered with sediments.[…]In our system, the identification of a foraminiferon is based on the shape descriptions of its three characteristic views: the spiral view, the umbilical view, and the lateral view (cf. Figure 37).