THE PHYLUM ARCHAEOCYATHA

1. The Archaeocyatha are, geologically speaking, a short‐lived group, characteristic of the carbonate‐shelf and reef environments of the Lower Cambrian and early Middle Cambrian. They are found in all continents, excepting South America but including Antarctica. They are the only animal phylum that has become extinct.

[1]  E. H. Mckee.  Ontogenetic stages of the archaeocyathid Ethmophyllum whitneyi Meek , 1963 .

[2]  M. Laird,et al.  Archæocyathine Limestones of Antarctica , 1962, Nature.

[3]  S. H. Haughton.  AN ARCHAEOCYATHID FROM THE NAMA SYSTEM , 1960 .

[4]  F. Debrenne.  Connaissances actuelles sur l'ontogenese des Archaeocyatha , 1959 .

[5]  V. J. Okulitch,et al.  Archaeocyathid localities in Washington, British Columbia, and the Yukon Territory , 1958 .

[6]  F. Debrenne.  Sur les Archaeocyatha du Cambrien de Carteret (Manche) , 1958 .

[7]  Z. Reiss.  Classification of lamellar foraminifera , 1958 .

[8]  R. Cummings.  Revision of the upper Palaeozoic textulariid foraminifera , 1956 .

[9]  V. J. Okulitch,et al.  The systematic position of Archaeocyatha (pleosponges) , 1953 .

[10]  A. Wood.  The structure of the wall of the test in the Foraminifera; its value in classification , 1948, Quarterly Journal of the Geological Society of London.

[11]  V. J. Okulitch.  North American Pleospongia , 1943 .

[12]  W. H. Bryan,et al.  Spherulitic crystallization as a mechanism of skeletal growth in the Hexacorals , 1941 .

[13]  R. Bedford,et al.  Development and classification of archaeos (pleospongia) , 1939 .

[14]  R. Bedford,et al.  Further notes on Archaeocyathi (Cyathospongia) and other organisms from the lower Cambrian of Beltana, South Australia , 1936 .

[15]  W. Gordon.  XXVII.—Scottish National Antarctic Expedition, 1902–1904: Cambrian Organic Remains from a Dredging in the Weddell Sea , 1921, Transactions of the Royal Society of Edinburgh.

[16]  G. J. Hinde.  On Archæocyathus, Billings, and on other Genera, allied to or associated with it, from the Cambrian Strata of North America, Spain, Sardinia, and Scotland , 1889, Quarterly Journal of the Geological Society of London.

[17]  J. Dawson.  On the Structure of certain Organic Remains in the Laurentian Limestones of Canada , 1865, Quarterly Journal of the Geological Society of London.

[18]  E. Billings.  On some new or little-known species of Lower Silurian fossils from the Potsdam Group (Primordial Zone) , 1865 .

[19]  E. Billings.  New Species of Lower Silurian Fossils , 1862 .