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Dickinsonia as a polypoid organism

Published online by Cambridge University Press:  08 February 2016

James W. Valentine
James W. Valentine*
Affiliation:
Department of Integrative Biology and Museum of Paleontology, University of California, Berkeley, California 94720
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Abstract

Dickinsonia is reconstructed as a benthic polypoid of generally cnidarian design. The oral surface was without tentacles but contained a median oral slit that probably led through a pharynx into an enteron, which was divided into digestive diverticulae by radiating mesenteries; feeding may have been via ciliary tracts. The mesenteries and body wall contained a stiff form of mesogloea. There seems to be no need to postulate a novel constructional grade for this organism, bringing the concept of the Vendozoa into question.

Type
Research Article
Information
Paleobiology , Volume 18 , Issue 4 , Fall 1992 , pp. 378 - 382
Copyright
Copyright © The Paleontological Society 

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References

Literature Cited

Conway Morris, S. 1979. Middle Cambrian polychaetes from the Burgess Shale of British Columbia. Philosophical Transactions of Royal Society of London B 285:227–274.Google Scholar
Fedonkin, M. A. 1981. White Sea biota of the Vendian. Trudy, Geological Institute, Akademia Nauk SSSR 342:1–100. [In Russian.]Google Scholar
Fedonkin, M. A. 1985. Non-skeletal fauna of the Vendian: promorphological analysis. Pp. 7–69in Sokolov, B. S. and Ivanovich, A. B., eds. The Vendian System, Vol. 1. Paleontology. Nauka, Moscow[In Russian.]Google Scholar
Fedonkin, M. A. 1986. Precambrian problematic animals: their body plan and phylogeny. Pp. 59–67in Hoffman, A. and Nitecki, M. H., eds. Problematic fossil taxa. Clarendon Press, Oxford.Google Scholar
Glaessner, M. F. 1961. Precambrian animals. Scientific American 204:72–78.CrossRefGoogle Scholar
Glaessner, M. F. 1984. The dawn of animal life, a biohistorical study. Cambridge University Press, Cambridge.Google Scholar
Harrington, H. J., and Moore, R. C. 1955. Kansas Pennsylvanian and other jellyfishes. Kansas Geological Survey Bulletin 114(5):153–163.Google Scholar
Hyman, L. H. 1940. The invertebrates, Protozoa through Ctenophora. McGraw-Hill, New York.Google Scholar
Jell, J. S. 1984. Cambrian cnidarians with mineralized skeletons. Palaeontographica Americana 54:105–109.Google Scholar
Jell, P. A., and Jell, J. S. 1976. Early Middle Cambrian corals from western New South Wales. Alcheringa 1:181–195.CrossRefGoogle Scholar
Koehl, M.A.R. 1977. Mechanical diversity of connective tissue of the body wall of sea anemones. Journal of Experimental Biology 69:107–125.CrossRefGoogle Scholar
McMenamin, M.A.S. 1986. The garden of Ediacara. Palaios 1:178–182.CrossRefGoogle Scholar
Norris, R. D. 1989. Cnidarian taphonomy and affinities of the Ediacara biota. Lethaia 22:381–393.CrossRefGoogle Scholar
Palij, V. M., Posti, E., and Fedonkin, M. A. 1979. Soft-bodied Metazoa and trace fossils in Vendian and Lower Cambrian. Pp. 49–82in Keller, B. M. and Rozanov, Y. Yu., eds. Upper Precambrian and Cambrian paleontology of East European Platform. Academy of Sciences, Moscow. [In Russian.]Google Scholar
Runnegar, B. 1982. Oxygen requirements, biology and phylogenetic significance of the late Precambrian worm Dickinsonia, and the evolution of the burrowing habit. Alcheringa 6:223–239.CrossRefGoogle Scholar
Scrutton, C. T., and Clarkson, E.N.K. 1991. A new scleractinianlike coral from the Ordovician of the Southern Uplands, Scotland. Palaeontology 34:179–194.Google Scholar
Seilacher, A. 1984. Late Precambrian and Early Cambrian Metazoa: preservational or real extinctions? Pp. 159–168in Holland, H. D. and Trendall, A. F., eds. Patterns of change in earth evolution. Springer, Berlin.CrossRefGoogle Scholar
Seilacher, A. 1989. Vendozoa: organismic construction in the Phanerozoic biosphere. Lethaia 22:229–239.CrossRefGoogle Scholar
Termier, H., and Termier, G. 1968. Evolution et biocinese. Les invertébrés dans l'histoire du monde vivant. Masson et Cie, Paris.Google Scholar
Towe, K. M. 1981. Biochemical keys to the emergence of complex life. Pp. 297–306in Billingham, J., ed. Life in the universe. MIT Press, Cambridge, Mass.Google Scholar
Valentine, J. W., Awramik, S. M., Signor, P. W., and Sadler, P. M. 1991. The biological explosion at the Precambrian-Cambrian boundary. Evolutionary Biology 25:279–356.Google Scholar
Vaughn, T. W. 1907. Recent Madreporaria of the Hawaiian Islands and Laysan. United States National Museum Bulletin 59 no. 9:1–427.Google Scholar
Viidik, A. 1972. Functional properties of collagenous tissues. International Review of Connective Tissue Research 6:127–215.CrossRefGoogle Scholar
Wade, M. 1972. Dickinsonia: polychaete worms from the late Precambrian Ediacaran fauna, South Australia. Memoirs of the Queensland Museum 16:171–190.Google Scholar