Three localities (Grillental, Langental, Elisabethfeld) of the Lower Miocene of the Sperrgebiet (southwestern Namibia) have yielded amphibians. Only anurans are represented. This fauna includes 'Xenopus' stromeri (Pipidae), another pipid (an indeterminate possible Pipinae), an indeterminate Ranoidea, another possible ranoid, and two other taxa that are indeterminate. 'Xenopus' stromeri is redescribed and a diagnosis is provided. The relationships of this species within the Pipidae being doubtful, it is provisionally retained in Xenopus although it should probably be removed from this genus. Pipidae largely outnumber the other taxa, which suggests that permanent stands of quiet and/or stagnant water were present.