description Cladoselache Overview
Cladoselache is an extinct genus of shark-like cartilaginous fish from the Late Devonian, known especially from well-preserved fossils found in Ohio. It had a streamlined body, paired fins, multiple gill slits, and two dorsal fins, but lacked several features characteristic of many later sharks. Preserved stomach contents indicate that it ate fish and other marine animals, making it an important fossil for studying early chondrichthyan anatomy and predation.
help Cladoselache FAQ
When did Cladoselache live?
Cladoselache lived during the Late Devonian period, roughly 370 million years ago. It is one of the earliest well-known chondrichthyans, the group that includes modern sharks and rays.
Where have Cladoselache fossils been found?
Cladoselache is known especially from well-preserved fossils found in Ohio, specifically from the Cleveland Shale deposits. These fossils are remarkable for preserving detailed body outlines and even stomach contents.
What did Cladoselache look like compared to modern sharks?
Cladoselache had a streamlined body with paired fins, multiple gill slits, and two dorsal fins, but it lacked several features of modern sharks, including claspers for internal fertilization. Its teeth were multi-cusped and not replaced as continuously as in living sharks.
How big was Cladoselache?
Most Cladoselache specimens indicate a body length of approximately one to two meters. Its streamlined form suggests it was an active swimming predator in Devonian marine environments.
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