The tests of large Late Cretaceous holasteroid and spatangoid echinoids provided hard substrates that could become infested, both before and after death, by a range of invertebrates. Specimens of Echinocorys gr. conoidea (Goldfuss) from the Lixhe 1 Member (Gulpen Formation) of north-east Belgium are well-known as bored and encrusted benthic islands. A brachiopod pedicle attachment, Podichnus sp. cf. P. centrifugalis Bromley and Surlyk, is located on the apical system of a strongly-infested test; this was the highest point of the echinoid even after death. This would have favoured the brachiopod feeding in clean water. A bourgueticrinid crinoid attachment at mid-height on the test is conical, but lacks encrusting radices. Such a brachiopod-crinoid association is, perhaps, more typical of the Palaeozoic than of the latest Mesozoic (i.e., Maastrichtian).