Each of the three seasons of fieldwork in Malawi during which we visited the southern Malawi Karoo and the Chiweta Beds was funded by the National Geographic Society, for which we are extremely grateful. Additional support was provided by the Institute for the Study of Earth and Man at Southern Methodist University, and the W. Downs and P. Willette funds of The Saurus Institute, which allowed us to evaluate the Karoo Supergroup and the Lupata Group in Mozambique. We thank every member of each of the crews we have worked with in Malawi, all of whom shared our friendship with W. Downs. We acknowledge our continuing appreciation to the Government and the people of Malawi, to the Malawi Department of Antiquities, and to G. Mgomozulu and Y. Juwayeyi who helped us to initiate this project. For discussions, comments, and access to specimens and data, we thank K.D. Angielczyk, J. Hancox, G. King, N. Macleod, M.J. Polcyn, B. Rubidge, C. Sidor, and R. Smith. We learned a great deal from all of these colleagues. This paper has benefited from thorough reviews by K.D. Angielczyk, B. Rubidge, and C. Sidor, although we do not necessarily expect them to heartily accept all of our accommodations to their comments, and they are certainly not responsible for any decisions we may have taken. We acknowledge our deep appreciation of the late N. Hotton, III, who enabled the preparation of Mal 129, showed us specimens, and discussed Karoo vertebrates with us. With this contribution our proud association in the African field with W. Downs is brought to a close.