Spinosaurus

spinosaurus drawing
 

Spinosaurus
SPY-noh-SOR-us

Name Meaning: Spine lizard

Period: Cretaceous Period

Time: 112-93 million years ago

Length: 50 feet (15 meters)

Weight: 20 tons (18 metric tons)

Location: North Africa (Egypt, Morocco)

Family: Spinosauridae

Diet: Carnivore (piscivore)

Picture a dinosaur that dwarfs even T. rex, sporting a massive sail on its back and jaws like a crocodile designed for snatching fish. Meet Spinosaurus, the semi-aquatic giant of the Cretaceous.

In 1915, Ernst Stromer unearthed the first fossils in Egypt’s Bahariya Oasis and named it Spinosaurus aegyptiacus for its towering neural spines up to 6 feet tall, forming a sail possibly used for display or thermoregulation. Tragically, the original specimens were destroyed in a WWII bombing, but new finds in Morocco and elsewhere revived the story. Paleontologist Nizar Ibrahim’s discoveries revealed Spinosaurus as uniquely adapted for water, with a flexible tail like a thresher shark for propulsion and dense bones like penguins.

This behemoth hunted in river deltas teeming with fish, sawfish, and even crocodyliforms. Its conical teeth and kinked snout were perfect for gripping slippery prey. Recent studies confirm it could walk on land but was primarily aquatic, spending much time swimming.

Spinosaurus challenges everything we thought about dinosaurs, proving they conquered rivers and seas too. Ongoing digs promise more revelations about this enigmatic predator.

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