FIGURE 1. Cladogram demonstrating the evolutionary relationships between Youngina with other reptile taxa (modified from Müller 2003). Dagger denotes extinct taxa. Nodes: A, Amniota; B, Reptilia; C, Eureptilia; D, Diapsida; E, Neodiapsida; F, Sauria; G, Lepidosauromorpha; H, Lepidosauria; I, Archosauromorpha.