Theological synthesis of religious doctrine with evolutionary science is commonly referred to as theistic evolution. The influential Thomistic school of theology has played a complex role in Catholic contributions to this subject. In the present essay I explore this historical legacy and take stock of recent Thomistic contributions to theistic evolution. I also highlight some unresolved issues, particularly those associated with the concept of substantial form. I conclude that theistic evolution within a Thomistic framework is a potentially more promising agenda (...) for Catholic theology than an incorporation of intelligent design and progressive creation. (shrink)