Mississippian-age shark fossils
Shell-crushing, oval-shaped teeth (These belonged to shark-related fish called holocephalians.)
Pointed teeth
Ctenacanthus dorsal spine, Hardin County. | |
Detail of Ctenacanthus dorsal spine, Hardin County |
Ctenacanthus dorsal spine, Hardin County. | |
Detail of Ctenacanthus dorsal spine, Hardin County |