Leptophractus is an extinct genus of embolomere described from an Upper Carboniferous coal mine at Linton, Ohio.[1][2] It probably represents a young growth interval, and is therefore a synonym, of Anthracosaurus lancifer, which was described much earlier from the same deposit at Linton.[3]
References
^Cope, E.D. (1873). "On Some New Batrachia and Fishes from the Coal Measures of Linton, Ohio". Proceedings of the Academy of Natural Sciences of Philadelphia. 25 (2): 340–343. JSTOR4624343.