Figure 16 in Ontogeny of a new Palaeogene pipid frog from southern South America and xenopodinomorph evolution

Figure 16. Posterior views (only right sides shown) of the skulls of three anuran taxa. A, Xenopus laevis (KU 195935). B, 'X.' romeri redrawn from Estes (1975a: fig.1). C, Pipa pipa (KU 129698). Numbers before the colon indicate the character and numbers after the colon indicate the character state. Foramina are shown in black and bone is shown in white. Not to scale.