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 is generally considered to be a member of the order Osteoglossiformes, a group that includes modern bony-tongued fishes. However, its specific relationships to other members of this order are still being investigated. Diversidens likely inhabited freshwater or brackish environments based on the geological formations where its remains have been discovered. The limited fossil material available for diversidens means that much of its biology and ecological role remains speculative, but its unique teeth offer a fascinating glimpse into the diversity of fish life during the age of dinosaurs.