|Named By:||Charles Walcott in 1911|
|Time Period:||Middle Cambrian|
|Location:||Canada, British Columbia - Burgess Shale|
|Size:||Around 38 millimetres long|
|Classification:||| Chordata | Cephalochordata ||
Pikaia gracilens is an extinct cephalochordate animal known from the Middle Cambrian Burgess Shale of British Columbia. Sixteen specimens are known from the Greater Phyllopod bed, where they comprised 0.03% of the community. It resembled the lancelet and perhaps swam much like an eel.