Spinosaurus had a swimmer's tail

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Dinosaur of the day Astrodon, an early cretaceous sauropod named for a star shape found after cutting open its tooth.

In dinosaur news this week:

• A nearly complete Spinosaurus tail shows It would have been a capable swimmer
• The researchers also released a 3D model of their Spinosaurus reconstruction
• The North Carolina bill to make Hypsibema the state dinosaur has been put on hold until 2021
• A charity sweepstakes and auction winner will get eaten by dinosaurs in Jurassic World: Dominion

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