Medontes
Medontes is a genus of extinct ray-finned fish that lived during the Triassic period. Fossil evidence suggests these fish inhabited freshwater environments, with specimens found in ancient lake deposits. The genus was first described in the early 20th century based on partial skeletal remains. Medontes possessed a fusiform body shape, typical of many ancient fish, and likely had moderate swimming capabilities. Its fin structure appears to have been relatively primitive compared to later fish groups. Analysis of fossilized teeth indicates a diet of smaller invertebrates or possibly plant matter, though definitive dietary habits remain a subject of ongoing research. The exact phylogenetic position of Medontes within the broader group of ray-finned fishes is still debated among paleontologists, with some suggesting it belongs to a basal lineage. Fossil occurrences are primarily concentrated in specific geological formations known for preserving freshwater fauna from the Triassic. The limited number of well-preserved specimens makes detailed reconstruction of its anatomy and lifestyle challenging. Further discoveries could shed more light on the evolutionary significance of Medontes and its place in the early diversification of actinopterygian fishes.