![Dr. Rod Taylor on Twitter: "One of the most remarkable fossils from the Middle #Cambrian #BurgessShale: Pikaia gracilens, an eel-like early chordate - and possibly an ancestor to all modern vertebrates, including Dr. Rod Taylor on Twitter: "One of the most remarkable fossils from the Middle #Cambrian #BurgessShale: Pikaia gracilens, an eel-like early chordate - and possibly an ancestor to all modern vertebrates, including](https://pbs.twimg.com/media/Ehow-mUXYAEJ12W.jpg)
Dr. Rod Taylor on Twitter: "One of the most remarkable fossils from the Middle #Cambrian #BurgessShale: Pikaia gracilens, an eel-like early chordate - and possibly an ancestor to all modern vertebrates, including
![Illustration of a pikaia. It is a Burgess shale fossil cephalochordate which looked like a 5-10cms..., Stock Photo, Picture And Rights Managed Image. Pic. BSI-BSIP-013991-006 | agefotostock Illustration of a pikaia. It is a Burgess shale fossil cephalochordate which looked like a 5-10cms..., Stock Photo, Picture And Rights Managed Image. Pic. BSI-BSIP-013991-006 | agefotostock](https://previews.agefotostock.com/previewimage/medibigoff/372ac33685e12d885fbcb1a295216abf/bsi-bsip-013991-006.jpg)
Illustration of a pikaia. It is a Burgess shale fossil cephalochordate which looked like a 5-10cms..., Stock Photo, Picture And Rights Managed Image. Pic. BSI-BSIP-013991-006 | agefotostock
![Pikaia gracilens Walcott, a stem‐group chordate from the Middle Cambrian of British Columbia - Morris - 2012 - Biological Reviews - Wiley Online Library Pikaia gracilens Walcott, a stem‐group chordate from the Middle Cambrian of British Columbia - Morris - 2012 - Biological Reviews - Wiley Online Library](https://onlinelibrary.wiley.com/cms/asset/e8624d82-9b49-4247-9dd5-d39db2c3255e/brv_220_f4.jpg)
Pikaia gracilens Walcott, a stem‐group chordate from the Middle Cambrian of British Columbia - Morris - 2012 - Biological Reviews - Wiley Online Library
![Pikaia is an extinct Burgess shale animal that lived in the Cambrian Period of British Columbia, Canada Stock Photo - Alamy Pikaia is an extinct Burgess shale animal that lived in the Cambrian Period of British Columbia, Canada Stock Photo - Alamy](https://c8.alamy.com/comp/F970DN/pikaia-is-an-extinct-burgess-shale-animal-that-lived-in-the-cambrian-F970DN.jpg)
Pikaia is an extinct Burgess shale animal that lived in the Cambrian Period of British Columbia, Canada Stock Photo - Alamy
![Amazon.com: Posterazzi PSTCFR200562P Illustration Pikaia is an Extinct Burgess Shale Animal That Lived in The Cambrian Period of British Columbia Canada Poster Print, 16 x 12: Posters & Prints Amazon.com: Posterazzi PSTCFR200562P Illustration Pikaia is an Extinct Burgess Shale Animal That Lived in The Cambrian Period of British Columbia Canada Poster Print, 16 x 12: Posters & Prints](https://m.media-amazon.com/images/I/51DA7m2NoaL.jpg)