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Skull in ventral view (A) with schematic drawing (B). Abbreviations: bs, basisphenoid; boc, basioccipital; ect, ectopterygoid; fr, frontal; ju, jugal; ls, laterosphenoid; mx, maxilla; oto, otoccipital; pa, palatine; pfr, prefrontal; pl, palpebral; pmx, premaxilla; po, postorbital; pt, pterygoid; q, quadrate; qj, quadrate-jugal.
