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Spinosaurus ezephycus had an aquatic lifestyle, the fossil discovery confirmed. Greater abundance of teeth of the giant dinosaur Spinosaurus aegyptiacus than the dental remains of land dinosaurs and some aquatic animals.

The KM river system from the Cretaceous period in Morocco strongly supports this 15 meter long hunter who spends most of his life in the water, where his teeth were dropped and preserved.

The only known dinosaur adapted for life in water, Spinosaurus aegyptiacus, swam and crossed the rivers of North Africa about 95 million years ago.


The only known dinosaur adapted for life in water, Spinosaurus aegyptiacus, swam and crossed the rivers of North Africa about 95 million years ago.

Spinosaurus aegyptiacus is a giant theropod dinosaur that lived about 95 million years ago (Cretaceous period) in what is now North Africa. This magnificent dinosaur has been interpreted as a semi-aquatic and fish-eating animal.

And it has recently been shown to possess a highly modified tail adapted to disperse the animal through water.

However, the hypothesis that this dinosaur was semi-aquatic, or even perhaps purely aquatic, has met with some opposition, mostly because it challenges a decade-long ideas about the and evolution of dinosaurs.

The discovery of hundreds of Spinosaurus aegyptiacus teeth at a new locality near Tarda on the northern margin of Tafiltal in southeastern Morocco further supports this hypothesis.

According to the same study author, Portsmouth professor David Martill said: The large number of teeth collected from the floor of the prehistoric river suggests that Spinosaurus aegyptis was in large numbers.

We do not know of any other place where such a mass of dinosaur teeth has been found in a rock with bones. The higher abundance of Spinosaurus aegyptiacus teeth relative to other dinosaurs is a reflection of their aquatic lifestyle.

An animal that lives its life in water is more likely to contribute teeth to river reservoirs than dinosaurs that probably visited the river just to drink and feed along its banks.

With this research, we can confirm this location because this giant dinosaur was not only alive but also dead. In fact, the results are consistent with the idea of a “river monster” that lives in water.

In the Moroccan Tarda there are different vertebrae from two localities:

(a) rostral dentary of oncoprecipites. numidus; (B) Lick shark; (C) Pycnodont Vomarin tooth fragment; (D) teeth of unknown large fish; (E) Lungfish dental plaque.

(F) abilicorid teeth; (G) indeterminate theropod teeth; (H) tooth of Spinosaurus sp .; (I) tooth of Carcharodotosaurus sp.

(J) titanosauroid sarcoprod dentition; (K) indeterminate thyme tooth; (L) Phospholosaurus crocodile tooth; (M) tooth of Allosuchus sp .; (N) Column fragment of the hybrid shark’s dorsal fin.

(O) vertebral probability attributed to Onchopristis number; (P) Indeterminate carpet turtle piece; (Q) Telest vertibra; (R) Holstein scale; (S) Indeterminate bone break. Scale bar – 10 mm.

After preparing all the fossils, we evaluated each one in turn, co-author Aaron Quigley, a master’s student at the University of Portsmouth, added to the study.

Spinosaurus aegyptiacus has a different tooth surface.

They have a smooth round cross section that glows when the light is hit. We classify the 1,200 teeth of the species and then we literally count them all. 45% of our total finding were Spinosaurus azipiacus teeth.

The Chem Chem river beds are an amazing source of Spinosaurus aegyptiacus remains, said first author Thomas Beaver, a master’s student at the University of Portsmouth.

They also preserve the remains of many other Cretaceous creatures. And including ara, coelacanths, crocodiles, flying reptiles and other terrestrial dinosaurs.

With such an abundance of Spinosaurus eziziacus teeth, it is highly likely that this animal lived primarily within the river rather than on its banks. The study was published in the Cretaceous Research Journal.


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