Due to their size (< 1 mm), studying the impact of benthic foraminifera on their ecosystem can be challenging. The purpose of this article is to describe a new methodology that will lead to a better understanding, through their bioturbating activities, of the role of benthic foraminifera in marine ecosystems. It also compares this new method with the current one. We demonstrate that the new method is much more precise and quicker than the previous one.