File:Pikaia BW.jpg

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Pikaia_BW.jpg(800 × 508 pixels, file size: 18 KB, MIME type: image/jpeg)

Summary

Description

Pikaia gracilens, the earliest known vertebrate ancestor, from the Middle Cambrian of British Columbia, digital

Date
Source Own work
Author Nobu Tamura (http://spinops.blogspot.com)

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Date/TimeThumbnailDimensionsUserComment
current08:08, 8 December 2007Thumbnail for version as of 08:08, 8 December 2007800 × 508 (18 KB)ArthurWeasley{{Information |Description= Pikaia gracilens, the earliest known vertebrate ancestor, from the Middle Cambrian of British Columbia, digital |Source= own work |Date= December 8, 2007 |Author= ArthurWeasley |Permission= |other_version

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