
21/06/2025
🔬🐠 Happy Science Saturday!
This mounted Pycnodontiformes fossil hails from the Cretaceous limestone of Hjoula, Lebanon, dating back 110 million years. These extinct ray-finned fishes were common in warm, shallow marine environments and are known for their laterally compressed, almost circular bodies- an adaptation for navigating dense reef systems.
Unlike modern predatory fish, pycnodonts had pavement-like teeth arranged in broad dental plates. These were specialized for durophagy- the consumption of hard-shelled organisms like mollusks and crustaceans. Their powerful jaws acted like natural grinders, allowing them to exploit ecological niches that few other fish could.
Lebanese fossil beds, particularly bear Haqel and Hjoula, are celebrated for their exceptional preservation. Fine-grained micritic limestone captured delicate anatomical details- fin rays, scales, vertebral columns- often in near-articulated condition. Fossils from these deposits are highly sought after for both their scientific value and their visual clarity.
Fossil Fish | Pycnodontiformes sp. | Hjoula, Lebanon | Cretaceous | 100 Million Years Old
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