Krzyzanowskisaurus is the name given to a genus of archosaur from the Late Triassic. The generic name honours Stan Krzyżanowski. It is a tooth taxon, based on fossils only of teeth. These teeth have been found in the U.S. states of Arizona (including the type locality) and New Mexico. The original report described it as a "probable ornithischian". Heckert (2005) suggests that Krzyzanowskisaurus teeth have biostratigraphic utility as an index fossil of the St. Johnsian sub-lvf (land-vertebrate faunachron).

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