Half-a-billion-year-old weird wonder worm finally gets its place in the tree of life
(PHYSorg.com Archaeology & Fossils)

Amiskwia was originally described by the famous palaeontologist Charles Doolittle Walcott (1850-1927) in 1911 who compared it to the modern arrow worms (chaetognaths) - a group of ocean-dwelling worms that are fierce predators, equipped with an array of spines on their head for grasping small prey.