Distal tibiofibular joint

The distal tibiofibular joint (Articulatio tibiofibularis distalis) is replaced by an early synostose in Rabbits and Equidae. In other species, it is nearly a dependency of the crurotarsal joint. The articular surfaces are not very extended; the one of the tibia is excavated in a fibular notch; the one of the fibula is convex in the cranio-caudal direction; more or less according to the species. 

In Ruminants, the fibula is represented by the external malleolus.