Editing Chordate (section)

==Etymology==
The name "chordate" comes from the first of these synapomorphies, the notochord, which plays a significant role in chordate [[body plan]] structuring and movements. Chordates are also [[Symmetry in biology#Bilateral symmetry|bilaterally symmetric]], have a [[coelom]], possess a [[Circulatory system#Closed circulatory system|closed]] [[circulatory system]], and exhibit [[metamerism (biology)|metameric segmentation]]. Although the name Chordata is attributed to [[William Bateson]] (1885), it was already in prevalent use by 1880. [[Ernst Haeckel]] described a taxon comprising tunicates, cephalochordates, and vertebrates in 1866. Though he used the German vernacular form, it is allowed under the [[International Code of Zoological Nomenclature|ICZN code]] because of its subsequent latinization.<ref name="Nielsen2012">{{cite journal
  | author=Nielsen, C.
  | date=July 2012
  | title=The authorship of higher chordate taxa
  | journal=Zoologica Scripta
  | volume=41 | issue=4 | pages=435–436
  | doi=10.1111/j.1463-6409.2012.00536.x
  | s2cid=83266247
 }}</ref>