Corpus ID: 21773393

Crinoidea Echinoidea Holothuroidea Asteroidea Ophiuroidea Pterobranchia Ptychoderidae Xenoturbellida Cephalochordata Vertebrata Harrimaniidae Appendicularia Phlebobranchia Thaliacea Aplousobranchia Stolidobranchia Molgulidae

@inproceedings{Swalla2008CrinoideaEH,
  title={Crinoidea Echinoidea Holothuroidea Asteroidea Ophiuroidea Pterobranchia Ptychoderidae Xenoturbellida Cephalochordata Vertebrata Harrimaniidae Appendicularia Phlebobranchia Thaliacea Aplousobranchia Stolidobranchia Molgulidae},
  author={B. Swalla and A. Smith},
  year={2008}
}
  • B. Swalla, A. Smith
  • Published 2008
  • Deuterostomes are a monophyletic group of animals that include the vertebrates, invertebrate chordates, ambulacrarians and xenoturbellids. Fossil representatives from most major deuterostome groups, including some phylum-level crown groups, are found in the Lower Cambrian, suggesting that evolutionary divergence occurred in the Late Precambrian, in agreement with some molecular clock estimates. Molecular phylogenies, larval morphology and the adult heart/kidney complex all support echinoderms… CONTINUE READING

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