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Interpreted anatomical reconstruction of the palatal view of the secondary palates of ‘sphenosuchians’ (a) Dibothrosuchus, (b) Litargosuchus, (c) Sphenosuchus, and (d) Terrestrisuchus. Missing or incomplete bones are in a lighter shade with a dashed line. Scale bar is 1 cm. Ch, choana; ch r, choanal ridge; i for, incisive foramen; pal d, palatine depression; sub fen, suborbital fenestra
