Refining explanation in Evolutionary Phonology: macro-typologies and targeted typologies in action

In this paper, we highlight the role of typology in providing an empirical basis for explanation within Evolutionary Phonology with a focus on rare sound patterns and extra-phonetic explanation. Broad typological surveys of sound patterns or macro-typologies that include phonetic detail may, at once, support universal tendencies and document rare sound patterns, offering arguments for theories in which universal tendencies based on phonetic explanation are emergent properties of markedness-free grammars. However, in order to explain rarity and explore extra-phonetic factors, targeted typologies, narrowed by specific structural properties or contact histories, may be necessary. In this study, the complementary roles of broad and targeted typologies are illustrated through recent case studies of three basic components of phonological systems—sound inventories, alternations, and phonotactics—, with a focus on non-phonetic explanations that have enhanced the predictive power of the Evolutionary framework.