A revision of Laeliichthys ancestralis Santos, 1985 (Teleostei: Osteoglossomorpha) from the Lower Cretaceous of Brazil: Phylogenetic relationships and biogeographical implications
Fig 5
Laeliichthys ancestralis Santos, 1985 [1].
Specimen UERJ-DZ 002. A, photograph of the head region; B, anatomical interpretations. Abbreviations: Ang, angular; Cl, cleithrum; D, dentary; Dsph, dermosphenotic; Enp, endopterygoid; Exs, extrascapular; Fr, frontal; gr.ot.sc, groove for otic sensory canal; gr.so.br, groove for supraorbital branch of otic sensory canal; gr.so.sc, groove for supraorbital sensory canal; Hy, hyomandibula; Io 1–4, infraorbitals 1 to 4; L, lacrimal; Mx, maxilla; Na, nasal; Op, opercle; Pa, parietal; Pmx, premaxilla; Pop, preopercle; Psp, parasphenoid; Pt, posttemporal; Pto, pterotic; Q, quadrate; Rar, retroarticular Soc, supraoccipital. Scale bar equals 5 mm.