Size refugia from predation through time: A case-study of two Middle Devonian brachiopod genera

► Crushing predation is a major source of mortality for marine invertebrates. ► Crushing predation has often been estimated by repair frequency. ► Interpretation of changes in repair frequency can be ambiguous. ► Examination of changes in the size refuge of the prey can solve this issue. ► First empirical study of the size refuge method.