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meaning: "after Pika Peak"
Named By: Charles Walcott in 1911
Time Period: Middle Cambrian
Location: Canada, British Columbia - Burgess Shale
Size: Around 38 millimetres long
Diet: Uncertain
Fossil(s): Many individuals
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.

Read more about Pikaia at Wikipedia
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