The Maevarano Formation is a nonmarine rock formation that was deposited under a seasonal, semi-arid climate. A diverse vertebrate assemblage is known from the formation, including fishes, frogs, other turtles, lizards, snakes, crocodyliforms, dinosaurs, birds, and mammals. The rocks of the formation can be subdivided into several members. UA 9748 was found in a claystone bed from an unnamed upper member; this member has also produced abundant and well-preserved fossils of ray-finned fish, crocodyliforms, and dinosaurs. The other specimens assigned to Kinkonychelys were found in the older Anembalemba Formation.[1]