Opacopteron

Opacopteron is a genus of extinct ray-finned fish that lived during the Late Cretaceous period. Fossil remains of Opacopteron have been found in various locations, including Europe. The genus is characterized by a unique combination of skeletal features, particularly in its fins and skull structure.

Members of the Opacopteron genus are believed to have inhabited marine environments. Their exact ecological role and diet are not fully understood due to the limited nature of the fossil record. However, their dentition and body shape suggest they were likely predators, possibly feeding on smaller fish or invertebrates.

The scientific classification of Opacopteron places it within the order Amiiformes, though its precise familial relationships are still a subject of research. The discovery of Opacopteron contributes to our understanding of ray-finned fish evolution during the Mesozoic Era, a time of significant diversification for this group. Further research and new fossil discoveries may shed more light on the biology and evolutionary history of this ancient fish.