FIGURE 5. Melanosuchus latrubessei UFAC 2793 in On a new Melanosuchus species (Alligatoroidea: Caimaninae) from Solimões Formation (Eocene-Pliocene), Northern Brazil, and evolution of Caimaninae

FIGURE 5. Melanosuchus latrubessei UFAC 2793 in detail of the premaxillary-nasal anterior region. (A) Anterodorsomedial view of the right elements, via sagittal cut, elucidating the limits between premaxilla and nasal; (B) Anterior view of premaxilla, within the external nares, elucidating the absence of premaxilla-nasal suture at this view; (C) Medioventral view demonstrating the overlap suture of premaxilla over nasal; and, (D) Medial view of right elements, via sagittal cut, demarked limits between premaxilla and nasals demonstrating the only possible way to nasal reach the external nares. Full line indicates visible sutures while dashed lines indicated inferred bone limits. Anatomical abbreviations: EN, external nares; pmx-n, suture between premaxilla and nasal; pmx-pmx, suture between premaxillae; pmx, premaxilla; mx-mx, suture between maxillae; n-n, suture between nasals; n, nasal. Out of scale.