Chordates, members o the phylum Chordata, are deuterostome ainimals possessin a notochord, a hollae dorsal nerve cord, pharyngeal slits, an endostyle, an a post-anal tail for at least some period o thair life cycles.
The "Scots" that wis uised in this airticle wis written bi a body that haesna a guid grip on the leid. Please mak this airticle mair better gin ye can. |
Taxonomically, the phylum includes the subphyla Vertebrata, includin mammals, fish, amphibians, reptiles, birds; Tunicata, includin salps an sea squirts; an Cephalochordata, comprisin the lancelets. For a recent concise review o chordate relationships, see Holland, N. D. 2005, Chordates. Curr. Biol. 15: R911-R914.
Chordata | |
---|---|
The X-ray tetra (Pristella maxillaris) is ane o the few chordates wi a visible backbone. The spinal cord is hoosed within its backbone. | |
Scientific classification | |
Kinrick: | Animalia |
Superphylum: | Deuterostomia |
Phylum: | Chordata Haeckel, 1874 |
The phylum Hemichordata includin the acorn worms haes been presented as a fowert chordate subphylum, but it nou is uisually treatit as a separate phylum. It, alang wi the echinoderm phylum, includin starnfish, sea urchins, an sea cucumbers an thair kin, is the chordates' closest relatives. Primitive chordates are kent frae at least as early as the Cambrian explosion.
Thare mair nor 75,000 livin species o chordates, aboot hauf o whilk is banie fish o the class osteichthyes. The warld's lairgest ainimal, the blue whaul, an festest ainimal, the peregrine falcon, are chordates.
This ainimal-relatit airticle is a stub. Ye can help Wikipaedia bi expandin it. |
This article uses material from the Wikipedia Scots article Chordate, which is released under the Creative Commons Attribution-ShareAlike 3.0 license ("CC BY-SA 3.0"); additional terms may apply (view authors). Content is available unner CC BY-SA 4.0 unless itherwise notit. Images, videos and audio are available under their respective licenses.
®Wikipedia is a registered trademark of the Wiki Foundation, Inc. Wiki Scots (DUHOCTRUNGQUOC.VN) is an independent company and has no affiliation with Wiki Foundation.