Fig. 2 in A New Nonmammalian Eucynodont (Synapsida: Therapsida) from the Triassic of Northern Gansu Province, China, and its Biostratigraphic and Biogeographic Implications

Fig. 2. Composite section of the Hongyanjing Formation exposed in the Beishan Hills. The new trirachodontid fossil was collected from the fossil-bearing dark shale exposed approximately 13.5 m above the basal contact of the formation with Hercynian plagio-diorite rocks.