Three new specimens of the rare alligatoroid Brachychampsa montana from the upper Campanian Kirtland Formation (De-na-zin Member), San Juan Basin, New Mexico, are the first bona fide examples of this taxon from this stratigraphic interval. The most complete specimen (SMP VP-1312) consists of much of the skull table and snout and a nearly complete mandible. SMP VP-1264 consists solely of an incomplete partial skull table (parietal, right squamosal), partial basicranium (basioccipital, otoccipital), and incomplete right quadrate, whereas NMMNH P-7988 is an isolated frontal. Together, these new specimens supplement and allow for further comparison to other globidontans and to previously documented specimens of Brachychampsa.

?Brachychampsa sealeyi, from the Menefee Formation of the San Juan Basin, New Mexico, is based on a juvenile specimen that cannot be distinguished from B. montana, so it is a subjective junior synonym. The crocodylian assemblage of the Kirtland Formation consists of Brachychampsa montana, Leidyosuchus sp. and Denazinosuchus kirtlandicus. It is doubtful that tooth morphology alone can be correlated with “cheloniphagous” diet within the globidontans.