- Paleontologists Discover Bizarre Half-Billion-Year-Old Fossil Treasure Trove in the Grand Canyon SciTechDaily
- A new species of ‘penis worm’ was discovered in the Grand Canyon Science News
- This bizarre ancient worm had spiky teeth and a retractable throat National Geographic
- A dragon in the Grand Canyon? Researchers name new fossil for ‘Star Wars’ creature yahoo.com
- Half A Billion Years Ago, The Grand Canyon Was Filled With Penis Worms IFLScience
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