New Ancient Shark Species Unearthed in Kentucky and Alabama

The discoveries offer unprecedented insights into the evolution of marine ecosystems over 325 million years ago.

Three new ancient shark species, including Troglocladodus trimblei, Glikmanius careforum, and Palaeohypotodus bizzocoi, discovered in Kentucky and Alabama.
The discoveries push back the origins of the ctenacanth lineage by over 50 million years, offering new insights into ancient marine ecosystems.
Troglocladodus trimblei and Glikmanius careforum lived over 325 million years ago, predating the formation of the supercontinent Pangea.
Palaeohypotodus bizzocoi, living roughly 65 million years ago, highlights the recovery of ocean life after major extinction events.
The findings underscore the significance of Mammoth Cave and Alabama as rich sites for paleontological research, revealing over 400 unique species of sharks and bony fishes.