and a potential humerus fragment. The skeleton was recovered in 1998 from a productive fossil site in the Morondava Basin of southwest Madagascar. The site preserves the lower part of the informally named Isalo II beds (also known as the Makay Formation). The basal Isalo II beds are likely late Ladinian or early Carnian in age based on cynodonts shared with the Santa Maria Supersequence of Brazil. Kongonaphon was first reported in a 2019 conference abstract, though at the time it was unnamed. It was formally named and described in 2020. The generic name is derived from the Malagasy word Kongona (meaning "bug"), and the Greek suffix -phon (derived from a term for "slayer"). The specific name kely is the Malagasy word for "small". Together, Kongonaphon kely translates to "tiny bug slayer", according to its diminutive size and potentially insectivorous habits. Description The maxilla is tall and has a relatively wide front portion when seen from above. The front edge is also concave, similar to early pterosaurs. Six teeth are preserved in the maxilla, though the rear part of the bone is missing. The teeth were peg-like and conical, with a circular cross-section and no serrations. The teeth are ornamented by irregular pitting, a texture which in modern animals is correlated with a diet of insects. A limb bone fragment has been tentatively identified as the lower part of a humerus. This fragment has poorly differentiated condyles (unlike the humerus of Ixalerpeton) but is also markedly asymmetrical (like Ixalerpeton). The femur is very slender, sigmoid, and has a prominent fourth trochanter. The femoral head shares many similarities with other lagerpetids. It is strongly hooked and has a concave emargination on its lower edge. When seen from above, the femoral head has a large posteromedial tuber, a small anterolateral tuber, and no anteromedial tuber. The outer side of the femoral head also has an anterior trochanter, a muscle scar which is present in some lagerpetids but absent in others. At least in Dromomeron gregorii, it seems to develop only in fully grown individuals. The blade-like fourth trochanter has a folded inner edge and an outer edge which smoothly transitions to the shaft of the femur. Both of these features are more similar to Ixalerpeton than Lagerpeton (or Dromomeron, which has a fourth trochanter which is small and mound-like in some species and absent in others). The bent inner edge of the