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The rauisuchids are confused with a host of other pre- dinosaurian
archosaurs. The rauisuchids in my opinion should include the
monophyletic assemblage of Rauisuchus, Saurosuchus, Tikisuchus,
Fasalosuchus, Ticinosuchus (=Mandasuchus?), Heptasuchus? and possibly
Shuvosaurus. Postosuchus which is termed as a rauisuchid is basically a
poposaurid. Prestosuchus is also an independent form with nowhere within
the monophyletic rauisuchids.