Daptocephalus is an extinct genus of dicynodont synapsid, which was found in Late Permian strata, in a biozone known precisely for the presence of fossils of this dicynodont, the Daptocephalus Assemblage Zone, in the Karoo Basin in South Africa.Viglietti, P. A., Smith, R. M., Angielczyk, K. D., Kammerer, C. F., Fröbisch, J., & Rubidge, B. S. (2016). The Daptocephalus Assemblage Zone (Lopingian), South Africa: a proposed biostratigraphy based on a new compilation of stratigraphic ranges. Journal of African Earth Sciences, 113, 153-164.R. F. Ewer. The anatomy of the anomodont Daptocephalus leoniceps (owen). Proceedings of the Zoological Society of London. doi 10.1111/j.1469-7998.1961.tb05881.x An additional species, D. huenei, is known from the Usili Formation in Tanzania and was formerly assigned to the genus Dicynodon before a study in 2019 recognised that the type specimen belonged to Daptocephalus. See also List of therapsids
References
The main groups of non-mammalian synapsids at Mikko's Phylogeny Archive