Coelodontognathus is an extinct genus of reptile from the Early Triassic (late Olenekian stage) of European Russia. It was originally described as a procolophonid parareptile in 1967 but was reclassified as a possible trilophosaurid archosauromorph in 2008. The genus includes two species: the type species C. donensis and C. ricovi. C. donensis is known from the holotype PIN 4173/129 (SGU 104/3103) and the referred PIN 4173/130 (SGU 104/3104), and C. ricovi is known from the holotype PIN 4173/127 (SGU 104/3101) and the referred PIN 4173/128 (SGU 104/3102), all of which represent dentaries that are housed at the Paleontological Institute, Russian Academy of Sciences. Another dentary, SGU 104/3105, originally referred to C. donensis was reassigned to its own genus and species Vitalia grata by