• Tunicates (subphylum Urochordata or subphylum Tunicata ) are marine, barrel-shaped invertebrates of the phylum Chordata . (newworldencyclopedia.org)
  • These animals belong to the invertebrate class Ascidiacea , phylum Chordata and subphylum Urochordata , also called Tunicata . (cedointercultural.org)
  • Like all members of the subphylum Urochordata, the Pyrosomes are filter feeders - using a mechanism similar to the tunicates. (earthlife.net)
  • Also known as sea squirts , tunicates are barrel-shaped, often very-vividly-colored members of the subphylum Urochordata , which attach themselves to rocks, docks, and other stationery underwater objects. (rd.com)
  • The Urochordata , also known as Tunicates and Ascidians , are more commonly known as 'sea squirts. (edu.au)
  • In Urochordata, notochord is present only in larval tail, while in Cephalochordata, it extends from head to tail region and is persistent throughout their life. (sujhav.com)
  • Chordata also contains two clades of invertebrates: Urochordata and Cephalochordata. (openstax.org)
  • Indeed, reliable and relevant chronic cadmium toxicity data were found for one species of marine ascidians ( Ciona intestinalis , Ascidiacae, Urochordata). (europa.eu)
  • The two subphyla Urochordata and cephalochordate claim for nearly 2,500 species. (ukessays.com)
  • http://nas.er.usgs.gov/queries/FactSheet.asp?SpeciesID=1292 Lützen J (1998) Styela clava Herdman (Urochordata, Ascidiacea), a successful immigrant to North West Europe: ecology, propagation and chronology of spread. (ku.lt)
  • Urochordata" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus, MeSH (Medical Subject Headings) . (harvard.edu)