Dittosaria wetherelli was a small colonial cheilostome bryozoan and is the type species of Dittosaria. The colony consisted of many connected zooids, each capable of extending a lophophore to capture suspended microscopic food, so the whole colony acted as a fixed suspension-feeding structure.

The species is recorded from the Ypresian of England. Its delicate colonial skeleton is liable to break into short branches or fragments, meaning that microscopic zooid arrangement and apertural details are more reliable for identification than the overall size of a collected piece.