Spinosaurus Becomes the First Known Swimming Dinosaur

Rodiano Bonacci
Mag 3, 2020

Archeologists have known about spinosaurus for decades, but their research has been painfully slow because numerous most important fossils were destroyed during the Second World War. This is the first Spinosaurus skeleton to be found for over a hundred years.

Now, nearly six years later, Ibrahim has published research in the journal Nature that proves the existence of an semi-aquatic Spinosaurus through a tail he found - "a propulsive structure that would have allowed this river monster to actively pursue prey in the water column", he told Reuters - in Morocco.

What new discoveries reveal about the incredible Spinosaurus: Fossils tell us a lot about how dinosaurs lived. Due to an assortment of the latest bones found in late 2018, researchers have been in a position to reconstruct the tail of Spinosaurus, solidifying the argument it was an awesome swimmer, in a position to maneuver and hunt prey beneath the floor.

It's not the first time Ibrahim has argued that spinosaurus could swim, but he says this new evidence sheds more light on exactly how the big-toothed baddie dominated on land and in the water. It is also one of the few associated dinosaurs skeletons ever to be found in the Kem Kem rocks. "So, yes, we believe that this discovery does indeed revolutionize our understanding of dinosaur biology".

The Spinosaurus skeleton was found in the Kem Kem river beds, which preserve the remains of many other Cretaceous creatures including sawfish, coelacanths, crocodiles, flying reptiles and other land-living dinosaurs.

For more dinosaur discoveries and developments, read about the complete skull of the smallest known dinosaur that was found preserved in amber, find out about the new tyrannosaur species, dubbed "Reaper of Death" by scientists, and take a look at a recent study that suggests mercury contamination occurred prior to dinosaur extinction.

"One thing that still puzzles me though, is why only Spinosaurus became aquatic among the dinosaurs", he said. Why are there no aquatic iguanodons, or stegosaurs'.

This discovery is the nail in the coffin for the idea that non-avian dinosaurs never invaded the aquatic realm.

In an effort to make their findings sound, the team of researchers used photogrammetry to map the anatomy of the tail before study participants proceeded in making a model. To quantitatively assess the performance of the tail, a team of Harvard researchers made a flexible model of the tail and attached it to a robotic system that mimics swimming movements.

The study, published today in the journal Nature, comes to the conclusion that this animal was a truly water-dwelling, tail-propelled dinosaur which likely spent most of its life underwater. According to the paper, authored by University of Detroit Mercy paleontologist and anatomist Nizar Ibrahim et al., evidence of a species of Spinosaurus, Spinosaurus aegyptiacus, having a tail in the shape of "an aquatic propulsive structure" has been verified by new fossil findings.

This indicates Spinosaurus terrorised rivers and river banks as a semi-aquatic animal, not merely wading into the water waiting for fish to swim by. It probably spent most of its life in the water'.

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