Burgess Shale's Weird Wonders
The fossils found in the Burgess Shale include the 500-million-year-old ancestors of most modern animals
- By Smithsonian.com
- Smithsonian.com, July 16, 2009
(Chip Clark, SI)
Hallucigenia sparsa was originally described by Walcott as a polychaete annelid. Today, Hallucigenia is identified as an armored lobopod — related to today's land-based velvet worms. Hallucigenia gained fame as Stephen Jay Gould’s classic “weird wonder” in his 1989 book, Wonderful Life.