“…However, both infaunally positioned suspension feeders anchored by spines and attached epifaunal suspension feeders may be common. We suggest that the spinose cylindrical taxa most common throughout the studied interval (stilostomellid species of the genus Strictocostella ) [ Hayward et al ., ] may have been shallow infaunally living species, according to their shape, distribution, and carbon isotope signature [ Hayward and Kawagata , ; Hayward et al ., ; Mancin et al ., ], anchored in the sediment by their spines [ Hottinger , ] and suspension feeding in the water column using their pseudopods extended through the complex aperture [e.g., Hottinger, , ; Mancin et al ., ]. Such a lifestyle would be in agreement with suggestions that they were infaunal, k‐strategist taxa with low metabolic rates [ Mancin et al ., ], and rules out the possibility of reworking as the cause of their high numbers in the sediment.…”