Walcott

【Life of the Cambrian】Marrella – 25,000 Specimens, and Still No Group to Put It In

Prehistoric Life

【Life of the Cambrian】Ottoia – The Worm Whose Gut Contents Revealed a 500-Million-Year-Old Menu

Prehistoric Life

【Life of the Cambrian】Aysheaia – The Shape Was Right From the Start; Only Its Identity Stayed Open

Prehistoric Life

【Life of the Cambrian】Anomalocaris – Described as Three Separate Animals: a Shrimp, a Jellyfish and a Sea Cucumber

Prehistoric Life

【Life of the Proterozoic】Grypania – Worm Trail, Alga or Bacterium? 120 Years Without an Answer

Prehistoric Life