tobaksaurðir
Tobaksaurðir is a genus of extinct ray-finned fish that lived during the Paleocene epoch. The name translates to "tobacco lizard," referring to the shape of its skull and the tobacco-colored fossils in which it was found. Tobaksaurðir is known from fossils discovered in the United States, particularly in the eastern United States. These fish are characterized by their elongated bodies and relatively large mouths. Fossil remains suggest that tobaksaurðir inhabited shallow marine environments, likely feeding on smaller invertebrates and fish. The genus currently contains several described species, distinguished by variations in fin placement, vertebral counts, and skull morphology. The study of tobaksaurðir provides insights into the diversity and evolution of fish communities in the early Cenozoic era, following the extinction event that wiped out the non-avian dinosaurs. Further research continues to shed light on the ecological role and evolutionary relationships of this ancient fish.