Paleontology

1979 Edition

Archaeocyatha

  • R. A. Gangloff
Reference work entry
DOI: https://doi.org/10.1007/3-540-31078-9_11

The Archaeocyatha are an extinct group of bottom-dwelling organisms, most of which inhabited warm shallow seas during the Lower and Middle Cambrian. They are represented in the fossil record only by their complex conical to discoidal skeletons of calcium carbonate, which range from a few mm to 60 cm in diameter, with most averaging 10–20 mm. Archaeocyatha have been positively identified in collections from all continents and subcontinents except South America.

Affinities

The biologic or systematic position of the archaeocyathids has always been unclear and highly debated by paleontologists. They have at various times been identified as protozoans, sponges, calcareous algae, or coelenterates. Most workers have considered them to be either representative of a distinct phylum or a major subdivision of the phylum Porifera. French and Soviet paleontologists who have been involved in this problem recently have concluded that the Archaeocyatha are an independent phylum of multicellular...

This is a preview of subscription content, log in to check access.

References

  1. Balsam, W. L., and Vogel, S., 1973. Water movement in Archaeocyathids: Evidence and implications of passive flow in models, J. Paleontology, 47, 979–984.Google Scholar
  2. Beerbower, J. R., 1968. Search for the Past: An Introduction to Paleontology. 2nd ed. New Jersey: Prentice-Hall, 512p.Google Scholar
  3. Debrenne, F., 1964. Archaeocyatha: Contribution à l'étude des faunes Cambriennes du Maroc, de Sardaigne et de France, Serv. Mines Carte Geol. Maroc, Notes et Mem., 1 & 2, 265p.Google Scholar
  4. Debrenne, F., 1969. Lower Cambrian Archaeocyatha from the Ajax Mine, Beltana, South Australia, Bull. British Mus. (Nat. Hist.), Geol., 17, 299–376.Google Scholar
  5. Debrenne, F., 1970. A revision of Australian genera of Archaeocyatha, Trans. Roy. Soc. S. Australia, 94, 21–48.Google Scholar
  6. Handfield, R., 1971. Archaeocyatha from the Mackenzie and Cassiar Mountains, Northwest Territories, Yukon Territory and British Columbia, Geol. Surv. Canada, Bull., 201, 119p.Google Scholar
  7. Hill, D., 1965. Archaeocyatha from Antarctica and a review of the phylum, Trans-Antarct. Exped., Sci. Repts., 10, 151p.Google Scholar
  8. Hill, D., 1972. Archaeocyatha, in C. Teichert, ed., Treatise on Invertebrate Paleontology, pt. E (rev.). Lawrence, Kansas: Geol. Soc. Amer. and Univ. Kansas Press, I, 158p.Google Scholar
  9. Rozanov, A. Yu., 1973. Zakonomernosti morfologicheskoi evolyutsii arkheotsiat i voprosy yarusnogo raschieneniya nizhnego kembriya, Trudy, Geol. Inst. Akad. Nauk SSSR, 241, 164p.Google Scholar
  10. Rozanov, A. Yu., and Debrenne, F., 1974. Age of archaeocyathid assemblages, Amer. J. Sci., 274, 833–848.CrossRefGoogle Scholar
  11. Zhuravleva, I. T., 1960. Arkheotsiaty Sibirskoy Platformy. Moscow: Adad. Nauk SSSR, 344p.Google Scholar
  12. Zhuravleva, I. T., 1970. Marine faunas and Lower Cambrian stratigraphy, Amer. J. Sci., 269, 417–445.CrossRefGoogle Scholar

Copyright information

© Dowden, Hutchinson & Ross, Inc. 1979

Authors and Affiliations

  • R. A. Gangloff

There are no affiliations available