SMRTR Science & EngineeringAug 27, 2025Interesting Engineering

World’s oldest armored dinosaur had bizarre 3-foot neck spikes fused to its skeleton

SMRTR summary

Newly discovered fossils of Spicomellus afer, the oldest armored dinosaur, reveal 3.2-foot neck spikes fused to its skeleton, unique rib spikes, and a tail weapon, predating previous ankylosaur tail weapon estimates by 30 million years.

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