An illustration of the Volkswagen Beetle-size stegosaur Bashanosaurus primitivus. (Image credit: Banana Art Studio)

The remains of a newly discovered stegosaur with huge backplates, long tail spikes and a teensy head belong to one of the oldest dinosaurs of its kind on record, a new study finds.

The armored dinosaur, a newfound species called Bashanosaurus primitivus, lived during the Middle Jurassic period (174.1 million to 163.5 million years ago) in what is now China. As one of the oldest stegosaurs on record, its discovery adds more evidence that these plant-eating dinosaurs possibly originated in Asia, the researchers said.


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