diversidens
Diversidens is a genus of extinct teleost fish that lived during the Late Cretaceous period. Fossils of diversidens have been found in the United States. The genus is notable for its unusual dentition, from which its name is derived, meaning "diverse teeth." The teeth of diversidens were heterogeneous, meaning they varied in size and shape within the jaws. This suggests a potentially varied diet or a specialized feeding strategy.
The exact phylogenetic placement of diversidens within the teleost lineage has been a subject of study. It