A stage (280–270.6 Ma ago) in the Early Permian of N. America, underlain by the Wolfcampian, overlain by the Middle Permian, overlapping the Artinskian. and containing the Kungurian stage. In some areas it is zoned by the use of fusulinid foraminiferids. It is the N. American equivalent of the Rotliegende. Red-bed localities of Wolfcampian–Leonardian age in Texas and Colorado have yielded many vertebrate fossils.