5337048
type: TaxonName
creator: www.organismnames.com
title: Pikaia gracilens
name complete: Pikaia gracilens
nomenclatural code: ICZN
published in: Cambrian geology and paleontology. II. No. 5. Middle Cambrian Annelids. Washington D C Smithsonian lnst Misc Collect 57(No. 5) 1911: (109-144). [Zoological Record Volume 48]