Thelerpeton is an extinct genus of procolophonine procolophonid parareptile from middle Triassic (early Anisian stage) deposits of Free State Province, South Africa.

It was collected by the South African palaeontologist, James W. Kitching from Hugoskop in the Rouxville District and referred to subzone B of the Cynognathus Assemblage Zone of the Burgersdorp Formation, Beaufort Group (Karoo Basin).

It was first named by Sean P. Modesto and Ross J. Damiani in 2003 and the type species is Thelerpeton oppressus.

[1][2] In their phylogenetic analyses, Butler et al. (2023) defined Thelerpeton as a sister taxon to Teratophon and Procolophon or as a sister taxon to clade consisting of Teratophon and Procolophon within Procolophoninae.

The results are shown in two cladograms below:[3] Teratophon Thelerpeton Procolophon