About: Chordate   Sponge Permalink

An Entity of Type : owl:Thing, within Data Space : 134.155.108.49:8890 associated with source dataset(s)

Chordata is a phylum from the Animalia kingdom.

AttributesValues
rdfs:label
  • Chordate
rdfs:comment
  • Chordata is a phylum from the Animalia kingdom.
  • Chordates (phylum Chordata) are a group of animals that includes the vertebrates, together with several closely related invertebrates. They are united by having, at some time in their life, a notochord, a hollow dorsal nerve cord, pharyngeal slits, an endostyle, and a muscular tail extending past the anus. Some scientists argue that the true qualifier should be pharyngeal pouches rather than slits. The chordates and two sister phyla, the hemichordates and the echinoderms, make up the deuterostomes, a superphylum.
sameAs
dcterms:subject
dbkwik:paleontolog...iPageUsesTemplate
subdivision ranks
  • Typical Classes
Name
  • Chordates
fossil range
  • Latest Ediacaran - Recent
Superphylum
Image caption
  • Yellowfin tuna, Thunnus albacares
Domain
subdivision
  • See below
Color
  • pink
unranked phylum
phylum authority
subregnum
Phylum
  • Chordata
regnum
  • Animalia
abstract
  • Chordates (phylum Chordata) are a group of animals that includes the vertebrates, together with several closely related invertebrates. They are united by having, at some time in their life, a notochord, a hollow dorsal nerve cord, pharyngeal slits, an endostyle, and a muscular tail extending past the anus. Some scientists argue that the true qualifier should be pharyngeal pouches rather than slits. The phylum Chordata is broken down into three subphyla: Urochordata, Cephalochordata, and Vertebrata. Urochordate larvae have a notochord and a nerve cord but they are lost in adulthood. Cephalochordates have a notochord and a nerve cord but no vertebrae. In all vertebrates except for Hagfish, the dorsal hollow nerve cord has been surrounded with cartilaginous or bony vertebrae and the notochord generally reduced. The chordates and two sister phyla, the hemichordates and the echinoderms, make up the deuterostomes, a superphylum. The extant groups of chordates are related as shown in the phylogenetic tree below. Many of the taxa listed do not match traditional classes because several of those classes are paraphyletic. Different attempts to organize the profusion of chordate clades into a small number of groups, some with and some without paraphyletic taxa, have thrown vertebrate classification into a state of flux. Also, the relationships of some chordate groups are not very well understood.
  • Chordata is a phylum from the Animalia kingdom.
is Phylum of
Alternative Linked Data Views: ODE     Raw Data in: CXML | CSV | RDF ( N-Triples N3/Turtle JSON XML ) | OData ( Atom JSON ) | Microdata ( JSON HTML) | JSON-LD    About   
This material is Open Knowledge   W3C Semantic Web Technology [RDF Data] Valid XHTML + RDFa
OpenLink Virtuoso version 07.20.3217, on Linux (x86_64-pc-linux-gnu), Standard Edition
Data on this page belongs to its respective rights holders.
Virtuoso Faceted Browser Copyright © 2009-2012 OpenLink Software