Schematic overview of the conical organization of myosepta and tendons as found in the ancestral condition. Plates in brown, vertebra in grey, myosepta in blue (MAC, main anterior cone; VPC, ventral posterior cone; hSAC, hypaxial secondary anterior cone) and tendons in light green (LT, lateral tendon; MT, myorhabdoid tendon; SMT, secondary myorhabdoid tendon).