Figure 4 in Redescription, taxonomic revaluation and phylogenetic affinities of Proterochampsa nodosa (Archosauriformes: Proterochampsidae) from the early Late Triassic of the Candelaria Sequence (Santa Maria Supersequence)

Figure 4. Proterochampsa nodosa (MCP 1694-PV) in dorsal view. A, fossil. B, interpretative line drawing. Abbreviations: aof, antorbital fenestra; ar, articular; dt, dentary; ept, ectopterygoid; fr, frontal; itf, infratemporal fenestra; ju, jugal; la, lacrimal; mx, maxilla; na, nasal; nf, narial fossa; nr, nares; or, orbit; pa, parietal; pl, palatine; pmx, premaxilla; po, postorbital; pra, pre-articular; prf, prefrontal; pt, pterygoid; qd, quadrate; qdf, quadrate foramen; qj, quadratojugal; sq, squamosal; sur, surangular; sus, surangular shelf. Grey area represents the plaster restoration. Scale: 50 mm.