ONCHopristis

Onchopristis is an extinct genus of sawfish from the Cretaceous period, known for its elongated rostrum lined with barbed teeth or denticles used for hunting. This ancient species, including O. numidus and O. dunklei, could grow to significant sizes, with rostrums up to 2.5 meters long, suggesting body lengths possibly reaching 10 meters. The Kem Kem Beds in Morocco, dating back to the Cenomanian stage, have yielded many Onchopristis fossils, indicating these sawfish were prevalent in the region's ancient riverine and possibly brackish environments. Specimens of Onchopristis have been associated with the jaws of Spinosaurus in North Africa, indicating that Spinosaurus would have preyed upon Onchopristis.