Fig 2: Photomicrographs of transverse sections through the telencephalon of Xenopus laevis (A–D) showing, from rostral to caudal levels, the Prox1/Er81 (A,B) and the Prox1/Lmo4 expressions (C,D). The white box in the figures (A–D) corresponds to the magnifications shown in the adjacent photos with the single staining (A'–D',A''–D''). In each panel, the color code for the used markers is indicated. Scale bar = 200 µm. See the abbreviation list.

Fig 3: (A) Summary diagram of the temporal gene expression of the markers analyzed in this study in the medial pallium of Xenopus laevis and Trachemys scripta elegans. (B) Schematic representations in development and adult showing that there are two subdivisions in both models, the MP/MCx: Prox1 + and the DMP/DMCx: Er81/Lmo4 +, related to mammalian DG and CA respectively. The X in the diagram indicates the lack of Prox1 expression at these developmental stages. The color code is indicated in each figure. Silhouette images of adult animals were obtained from phylopic.org. See the abbreviation list.