thaliaceans and similarities to vertebrates

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Pelagic Tunicates - Facts About Pelagic Tunicates - Thaliacea
Facts about the pelagic tunicates - organisms in the Class Thaliacea, including where they live, what they eat, and how they reproduce.
http://marinelife.about.com/od/vertebrates/p/Pelagic-Tunicates-Class-Thaliacea.htm

Chordate roots of the vertebrate nervous system: expanding the ...
Tunicates. The sister group of the vertebrates. Tunicates include the appendicularians or larvaceans, ascidians and the thaliaceans. In phylogenetic analyses .
http://www.nature.com/nrn/journal/v10/n10/glossary/nrn2703.html

  1. Function

    • CHARACTERISTICS OF CHORDATES
      These serve as living representations of the missing fossils in vertebrate evolution. . Thaliaceans lack a tail and notochord; they have no known larval stage.
      http://www.shsu.edu/~bio_mlt/Chap2.html

      Sarcopterygii - Wikipedia, the free encyclopedia
      These fins evolved into legs of the first tetrapod land vertebrates, amphibians . The fin-limbs of sarcopterygians such as the coelacanths show a strong similarity .
      http://en.wikipedia.org/wiki/Sarcopterygii

    Significance

    • Chordates - Phylum Chordata
      The notochord is developed at an early age, and is replaced with vertebrate. All vertebrates have a skeleton of either bone or cartilage. Their brain is protected .
      http://www.angelfire.com/mo2/animals1/phylum/chordata.html

      Chordate - New World Encyclopedia
      In lower vertebrates, it persists throughout life as the main axial support of the . In the subphylum Urochordata, classes Ascidiacea, Thaliacea, and Larvacea are .
      http://www.newworldencyclopedia.org/entry/Chordate

    Education and Experience

    • Urochordata Facts, information, pictures | Encyclopedia.com articles ...
      However, based on the similarities between larval tunicates and embryonic vertebrates . Without fossil evidence of the earliest vertebrates, it may never be known . the pelagic Thaliacea (salps), and the pelagic Larvacea (in which the larval .
      http://www.encyclopedia.com/topic/Urochordata.aspx

      Urochordata
      histories in the urochordates vs. cephalochordates + vertebrates suggest it might be . (appendicularians), and thaliaceans (doliolids, salps and pyrosomids).
      http://courses.washington.edu/emb2002/animals/urochordata.pdf

    Salary

    • An Advanced Filter-Feeder Hypothesis for Urochordate Evolution
      Thaliacea (salps), and Appendicularia (larvaceans); are extremely diverse in morphology, life his- . organs in ascidian embryos are more comparable to those of vertebrates than . have similarities with cephalochordates and also with non- .
      http://www.pucrs.br/fabio/reis/Urochordatevolution.pdf

      chordate: Definition from Answers.com
      Unlike vertebrates, tunicates and cephalochordates lack any kind of brain or . grouped according to their morphological similarities as perceived by those .
      http://www.answers.com/topic/chordate

    Job Outlook

    • GEOL 331 Lecture 34: Graptolites and Basal Chordates
      Chordata includes the vertebrates and their closest relatives, Euconodonta, Hyperotreti, Cephalochordata, and Urochordata. HAD (the hypothetical ancestral .
      http://www.geol.umd.edu/~tholtz/G331/lectures/331grapt.html

      EVOLUTION OF VERTEBRATES
      cephalochordate groups and then compare and contrast their similarities . Subphylum Urochordata is subdivided into three classes: Ascidiacea, Thaliacea, and .
      http://www.educationalimages.com/it080012.htm

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