Access

You are not currently logged in.

Access your personal account or get JSTOR access through your library or other institution:

login

Log in to your personal account or through your institution.

If you need an accessible version of this item please contact JSTOR User Support

A Conodont Fauna from the Keyser Limestone of Virginia and West Virginia

Charles T. Helfrich
Journal of Paleontology
Vol. 52, No. 5 (Sep., 1978), pp. 1133-1142
Stable URL: http://www.jstor.org/stable/1303859
Page Count: 10
  • Read Online (Free)
  • Subscribe ($19.50)
  • Cite this Item
If you need an accessible version of this item please contact JSTOR User Support
A Conodont Fauna from the Keyser Limestone of Virginia and West Virginia
Preview not available

Abstract

The first occurrence locally of Icriodus woschmidti in the topmost beds of the Keyser Limestone or the basal beds of the New Creek Limestone fixes the top of the Ozarkodina steinhornensis eosteinhornensis Zone for the Central Appalachians. This indicates that the Silurian-Devonian boundary could occur as high as the top of the Keyser Limestone for this region. The first reported occurrence of Ozarkodina steinhornensis scanica Jeppsson outside of Scandinavia extends the range of this species from the lower through the topmost beds of the Ozarkodina steinhornensis eosteinhornensis Zone. Comparison of the conodont and brachiopod zonations in the Central Appalachians and a review of conodont studies from the Roberts Mountains Formation (Nevada) creates reasonable doubt about the precision that can be obtained when intercontinental correlation of the recently defined Silurian-Devonian stratotype is attempted.

Page Thumbnails

  • Thumbnail: Page 
1133
    1133
  • Thumbnail: Page 
1134
    1134
  • Thumbnail: Page 
1135
    1135
  • Thumbnail: Page 
1136
    1136
  • Thumbnail: Page 
1137
    1137
  • Thumbnail: Page 
1138
    1138
  • Thumbnail: Page 
1139
    1139
  • Thumbnail: Page 
1140
    1140
  • Thumbnail: Page 
1141
    1141
  • Thumbnail: Page 
1142
    1142