Hostname: page-component-745bb68f8f-cphqk Total loading time: 0 Render date: 2025-01-08T08:09:20.043Z Has data issue: false hasContentIssue false
  • English
  • Français

An early Eocene pharetronid sponge from the Bateque Formation, Baja California Sur, Mexico

Published online by Cambridge University Press:  19 May 2016

Richard L. Squires  and
Robert Demetrion
Richard L. Squires
Affiliation:
Department of Geological Sciences, California State University, Northridge 91330
Robert Demetrion
Affiliation:
Department of Geological Sciences, University of Southern California, Los Angeles 90007
Get access Rights & Permissions [Opens in a new window]

Abstract

Elasmostoma bajaensis n. sp., a pharetronid calcareous sponge, is described from the lower Eocene (P8 or P9 Zone) portion of the Bateque Formation, Baja California Sur, Mexico. This is the first Tertiary record of this genus and its first Western Hemisphere occurrence. Elasmostoma has been previously reported only from Jurassic and Cretaceous strata of Western Europe.

Type
Research Article
Information
Journal of Paleontology , Volume 63 , Issue 4 , July 1989 , pp. 440 - 442
Copyright
Copyright © The Paleontological Society 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Berggren, W. A., Kent, D. V., Flynn, J. J., and Van Couvering, J. A. 1985. Cenozoic geochronology. Geological Society of America Bulletin, 96:1407–1418.Google Scholar
Fromentel, M. E. 1860. L'étude des éponges fossiles. Mémoires de la Société Linnéenne de Normandie, 11:1–50.Google Scholar
Geinitz, H. B. 1871–1875. Das Elbthalgebirge in Sachsen. Der untere Quader. Palaeontographica, 20:1–320.Google Scholar
Hartman, W. D. 1983. Modern Calcarea, p. 40–54. In Broadhead, T. W. (ed.), Sponges and Spongiomorphs—Notes for a Short Course. University of Tennessee, Department of Geological Sciences Studies in Geology 7.Google Scholar
Laubenfels, M. W. de. 1955. Porifera, p. E21–E112. In Moore, R. C. (ed.), Treatise on Invertebrate Paleontology, Pt. E, Archaeocyatha and Porifera. Geological Society of America and University of Kansas Press, Lawrence.Google Scholar
McLean, Hugh, Hausback, B. P., and Knapp, J. H. 1985. Reconnaisance geologic map of part of the San Isidro quadrangle, Baja California Sur, Mexico. U.S. Geological Survey, Miscellaneous Field Studies Map MF–1799.Google Scholar
Orbigny, A. D. d'. 1850. Prodrome de paléontologie stratigraphique universelle des animaux mollusques et rayonnes. Vol. 2. Paris, 427 p.Google Scholar
Rezvoi, P. D., Zhuravleva, I. T., and Koltun, V. M. 1971. Phylum Porifera, p. 5–97. In Orlov, Y. A. (ed.), Fundamentals of Paleontology, Vol. 2, Porifera, Archaeocyatha, Coelenterata, Vermes. Israel Program for Scientific Translations, Jerusalem.Google Scholar
Rigby, J. K. 1987. Phylum Porifera, p. 116–139. In Boardman, R. S., Cheetham, A. H., and Rowell, A. J. (eds.), Fossil Invertebrates. Blackwell Scientific Publications, Palo Alto.Google Scholar
Römer, F. A. 1864. Die Spongitarien des norddeutschen Kreidegebirges. Palaeontographica, 13:1–64.Google Scholar
Stainworth, R. M., Lamb, J. L., Luterbacher, H., Beard, J. H., and Jeffords, R. M. 1975. Cenozoic planktonic foraminiferal zonation and characteristic index forms. University of Kansas Paleontological Contributions, Article 62, 425 p.Google Scholar
Vacelet, J. 1981. Éponges hypercalcifiées (“Pharétronides,” “Sclérsponges”) des cavitiés de récifs coralliens de Nouvelle-Caledonia. Museum National d'Histoire Natural Paris, Bulletin, 4(3):313–351.Google Scholar