Strepsodus sp. Scale-Montana-BG79

Taxa: Strepsodus sp.

Age: Carboniferous-Mississippian

Geology: Heath Limestone-Bear Gulch Member

Locality: Fergus County, Montana

Strepsodus sp.

Strepsodus is an extinct genus of prehistoric tetrapodomorph fishes that lived during the Carboniferous period. Members of this genus are known for their unique tooth structure, which includes labyrinthine infolding—a characteristic feature of early tetrapods and their relatives. Fossils of Strepsodus have been found in various locations, including Europe and North America, indicating a wide distribution during their time.

Bear Gulch Limestone

The Bear Gulch Limestone is a fossil-rich geological formation located in Montana, USA, known for its exceptional preservation of marine fossils from the Mississippian subperiod of the Carboniferous period, approximately 330 million years ago.