Figure 17 in Ontogeny of a new Palaeogene pipid frog from southern South America and xenopodinomorph evolution

Figure 17. Dorsal views of the skulls of three anuran taxa. A, Discoglossus sardus (KU 129239). B, Saltenia ibanezi redrawn from Báez (1981: fig. 2). C, Xenopus muelleri (KU 196043). Numbers before the colon indicate the character and numbers after the colon indicate the character state. Spaces between bones are shown in black, cartilage is shown in grey, and bone is shown in white; the pterygoids are stippled. Not to scale.