Adeonellopsis incisa was an erect colonial bryozoan composed of hundreds of minute filter-feeding zooids. Each zooid occupied its own calcified chamber while remaining physiologically integrated into the colony, allowing the colony to exploit suspended food above the muddy sea floor.

The colony probably required a firm object for attachment, such as shell or driftwood. That fits the wider London Clay pattern in which rare bryozoans are associated with debris accumulations around large wood fragments, hard islands of substrate within an otherwise soft-bottom environment.