Hostname: page-component-586b7cd67f-dlnhk Total loading time: 0 Render date: 2024-11-24T07:00:34.421Z Has data issue: false hasContentIssue false
  • English
  • Français

Rousseauspira: new gastropod operculum from the Ordovician of Alaska and California

Published online by Cambridge University Press:  14 July 2015

David M. Rohr  and
A. W. Potter
David M. Rohr
Affiliation:
Department of Geology, Sul Ross State University, Alpine, Texas 79832
A. W. Potter
Affiliation:
Department of Geology, Oregon State University, Corvallis 97331
Get access Rights & Permissions [Opens in a new window]

Abstract

Rousseauspira teicherti, a new genus and species of an unusual, untwisted, horn-shaped gastropod operculum from shallow-subtidal limestones of the Upper Ordovician of Alaska and the Middle Ordovician of California, is described and compared to two other Ordovician opercula, Ceratopea Ulrich, 1911, and Teiichispira Yochelson and Jones, 1968. The shell to which the operculum belonged is not yet known.

Type
Research Article
Information
Journal of Paleontology , Volume 61 , Issue 2 , March 1987 , pp. 284 - 289
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

Bergström, S. M., Potter, A. W., Porter, R. W., Boucot, A. J. and Rohr, D. M. 1980. Biostratigraphic and biogeographic significance of Ordovician conodonts in the eastern Klamath Mountains, northern California. Geological Society of America Abstracts with Programs, 12:219.Google Scholar
Collier, A. J. 1902. A reconnaissance of the northwestern portion of Seward Peninsula, Alaska. United States Geological Survey Professional Paper 2, 70 p.CrossRefGoogle Scholar
Gilbert-Tomlinson, J. 1973. The Lower Ordovician gastropod Teiichispira in northern Australia. Australia Bureau of Mineral Resources Bulletin, 126:65–88.Google Scholar
Linsley, R. M. 1977. Some “laws” of gastropod shell form. Paleobiology, 3:196–206.CrossRefGoogle Scholar
Linsley, R. M. and Kier, W. M. 1984. The Paragastropoda: a proposal for a new class of Paleozoic Mollusca. Malacologia, 25:241–254.Google Scholar
Oliver, W. A. Jr., Merriam, C. W. and Churkin, M. Jr. 1975. Ordovician, Silurian, and Devonian corals of Alaska. United States Geological Survey Professional Paper 823-B:B13-B42.Google Scholar
Ormiston, A. R. and Ross, R. J. Jr. 1979. Monorakos in the Ordovician of Alaska and its zoo-geographic significance, p. 53–59. In Gray, J. and Boucot, A. J. (eds.), Historical Biogeography, Plate Tectonics, and the Changing Environment. Oregon State University Press, Corvallis.Google Scholar
Potter, A. W. 1984. Paleobiogeographical relations of Late Ordovician brachiopods from the York and Nixon Fork terranes, Alaska. Geological Society of America Abstracts with Programs, 16:626.Google Scholar
Rigby, J. K. and Potter, A. W. 1986. Ordovician sphinctozoan sponges from the eastern Klamath Mountains, northern California. Paleontological Society, Memoir 20, 47 p.CrossRefGoogle Scholar
Sainsbury, C. L., Dutro, J. T. Jr. and Churkin, M. Jr. 1971. The Ordovician–Silurian boundary in the York Mountains, western Seward Peninsula, Alaska. United States Geological Survey Professional Paper 750-CC52-C57.Google Scholar
Yochelson, E. L. 1975. Early Ordovician gastropod opercula and epicontinental seas. Journal of Research, United States Geological Survey, 3:447–450.Google Scholar
Yochelson, E. L. and Bridge, J. 1957. The Lower Ordovician gastropod Ceratopea. United States Geological Survey Professional Paper 294-H:281–304.CrossRefGoogle Scholar
Yochelson, E. L. and Jones, C. R. 1968. Teiichispira, a new Early Ordovician genus. United States Geological Survey Professional Paper 613-B: 1–13.Google Scholar