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  1. nih.gov
    https://pmc.ncbi.nlm.nih.gov › articles

    Chordate evolution and the three-phylum system - PMC

  3. Longdom Publishing SL
    https://www.longdom.org › open-access-pdfs
    [PDF]

    The Origins of Chordate Larvae - Longdom

    标记:
    Chordate Origins
    Hypothesis
  4. ScienceDirect
    https://www.sciencedirect.com › science › article › pii

    Hemichordates and the origin of chordates - ScienceDirect

    标记:
    Chordate Origins
    Publish Year:2005
  5. Nature
    https://www.nature.com › articles

    The deuterostome context of chordate origins | Nature

    2015年4月22日 · A central tenet of this theory is that the dorsal central nervous system of chordates evolved through the dorsal migration and fusion of the lateral ciliary bands of the dipleurula larvae, and...

    标记:
    Chordate Origins
    Chordata Protostome Or Deuterostome
    Chordates Post Anal Tail
  6. biologynotesonline.com
    https://biologynotesonline.com › origin-of-chordates...

    Origin of Chordates – Dipleurula concept, Echinoderm …

    2024年4月12日 · These larvae represent slightly modified versions of the ancestral chordate, which gave rise to the evolutionary lineage leading to vertebrates. According to this theory, certain larvae failed to undergo …

    标记:
    Chordate
    Echinoderm
  7. royalsocietypublishing.org
    https://royalsocietypublishing.org › doi

    Chordate evolution and the three-phylum …

    2014年11月7日 · Chordates share tadpole-type larvae containing a notochord and hollow nerve cord, whereas ambulacrarians have dipleurula-type larvae containing a hydrocoel. We …

    标记:
    Chordate Evolution
    Publish Year:2014
  8. 其他用户还问了以下问题
    Does chordate evolution change domain organization?
    Chordate evolution, we suggest, entailed little or no change of domain organization from that already present in the anteroposterior axis of the deuterostome ancestor. Gill slits and the post-anal tail might be ancestral deuterostome traits of this conserved dimension.

    Hemichordates and the origin of chordates - ScienceDirect

    sciencedirect.com
    What if chordate arose on the old dorsal side?
    If it arose on the old dorsal side, it would reverse the Bmp–Chordin axis and, with it, the development of the anatomy of all three germ layers. Another alternative, not yet made explicit, is the Bateson–Goodrich hypothesis that various parts of an uninverted ancestor moved around the anterior and posterior tips to give chordate organization.

    Hemichordates and the origin of chordates - ScienceDirect

    sciencedirect.com
    What are the three major chordate groups in the phylum Chordata?
    Chordates consist of three distinct animal groups: cephalochor-dates, urochordates (tunicates) and vertebrates. This review starts with a brief description of how the Phylum Chordata and its three subphyla were orig-inally defined, and then discusses how we should reclassify the major chordate groups. 2.

    Chordate evolution and the three-phylum system

    royalsocietypublishing.org
    Why did chordate ancestors segregate neurogenic ectoderm from epidermis for centralization?
    Chordate ancestors had to segregate neurogenic ectoderm from epidermis for centralization. This could have happened after body inversion. Centralization might have been an easy morphological modification to achieve once a diffuse ancestor had a rich domain map and the means to segregate axon tracts, as the deuterostome ancestor probably had.

    Hemichordates and the origin of chordates - ScienceDirect

    sciencedirect.com
    Why is chordonia called Chordata?
    He coined the name Chordonia for a hypothetical common ancestor of the Tunicata and the Vertebrata (including lancelets) by emphasizing the notochord as a significant diagnostic character shared by them. Later, Haeckel redefined Chordonia (i.e. Chordata) to include the Tunicata and the Vertebrata themselves.

    Chordate evolution and the three-phylum system

    royalsocietypublishing.org
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  9. ResearchGate
    https://www.researchgate.net › figure › Popular...

    Popular theories of Chordate Origins. (a) The …

    In this theory, echinoderm larvae are the ancestral deuterostome, then the hemichordate larvae evolved, and then chordate larvae evolved by the rolling up of the ciliary bands to form the...

    标记:
    Chordate Origins
    Larva
  10. MIT - Massachusetts Institute of Technology
    http://web.mit.edu › restricted › readings › Gerhart_etal.pdf
    [PDF]

    Hemichordates and the origin of chordates John Gerhart , …

    标记:
    Chordate Origins
    John K. Gerhart
  11. royalsocietypublishing.org
    https://royalsocietypublishing.org › doi › pdf
    [PDF]

    Chordate evolution and the three-phylum system

    标记:
    Chordate Evolution
    Publish Year:2014
    Different Classes in Phylum Chordata
  12. Kyoto University Research Information Repository
    https://repository.kulib.kyoto-u.ac.jp › dspace › bitstream
    [PDF]

    Origin and Evolution of Chordates - Kyoto U

    标记:
    Noriyuki Satoh, Kinya Yasui
    Publish Year:2001