Fig. 2. A in Morphology and taxonomic position of the bizarre Permian pachydomid bivalve Leinzia from Western Gondwana

Fig. 2. A. Location of the studied area in the southern part of the Paraná State, south Brazil. The outcrop belt of the Passa Dois Group is in grey. B. Map of the Paraná State, Brazil (frame indicates the southern part where studied area is located) (modified from Rohn and Rösler 2000; Guerrini et al. 2019). C. Geological map showing the main geographic area of occurrence of Leinzia similis (sensu stricto). Cartographic base: Mineropar 2006 (Mapa geológico do Estado do Paraná, 1:250 000). D. Columnar section of the Rio do Rasto Formation; note the constrained stratigraphic distribution of Leinzia similis (sensu stricto) in the Serrinha Member. Abbreviations: C, calcareous mudstone; CS, coarse sandstone; G, gravel; FS, fine sandstone; MS, medium sandstone; S, siltstone.