1. Some new Liassic terebratuloids;Ager,1957
2. Brachiopod distributions in the European Mesozoic;Ager,1960
3. Principles of Paleoecology;Ager,1963
4. Further new rhynchonelloid brachiopods from the Texas Cretaceous;Ager;J. Paleontol.,1964
5. The adaptation of Mesozoic brachiopods to different environments;Ager;Palaeogeogr., Palaeoclimatol., Palaeoecol.,1965