Mar 21, 2025
A fossilized shark tooth of a Leptostyrax macrorhiza from the Kem Kem Group in Taouz, Morocco. This species of lamniform or mackerel shark appears to have been tolerant of fresh or brackish water along with other true shark species such as Haimirichia amonensis and Cenocarcharias tenuiplicatus. These sharks may have encountered piscivorous dinosaurs like Spinosaurus and Sigilmassasaurus.