Fig. 13
From: High morphological disparity in a bizarre Paleocene fauna of predatory freshwater reptiles
Comparison of the palatal anatomy of choristoderes described in this study with those of extant large-bodied freshwater species found in North America. Note the absence of palatal tooth plates in Alligator mississippiensis and the similar placement of the palatal tooth rows in †K. magnicornis and A. spatula. Also note the similarities in alveolar size changes throughout the tooth rows of K. magnicornis and A. mississippiensis. †Champsosaurus a n d Alligator silhouettes public domain from phylopic.org.