Quick
Search: 		  
advanced search
 GSW Home   GeoRef Home   My GSW Alerts   Contact GSW   About GSW   Journals List   Help 
Palynology Don't get GSW? Talk to your librarian.
JOURNAL HOME HELP CONTACT PUBLISHER SUBSCRIBE ARCHIVE SEARCH TABLE OF CONTENTS
Palynology; 2008; v. 32;1; p. 27-37; DOI: 10.2113/gspalynol.32.1.27
© 2008 American Association of Stratigraphic Palynologists
This Article
Right arrow Figures Only
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Citing Articles
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by HEAL, S.
Right arrow Articles by CLAYTON, G.
Right arrow Search for Related Content
GeoRef
Right arrow GeoRef Citation

THE PALYNOLOGY OF THE HANNIBAL SHALE (MISSISSIPPIAN) OF NORTHEASTERN MISSOURI, U.S.A. AND CORRELATION WITH WESTERN EUROPE

SARAH HEAL and GEOFF CLAYTON

Department of Geology Trinity College Dublin Dublin 2 Ireland e-mail: healse{at}tcd.ie; gclayton{at}tcd.ie

Mississippian palynomorphs have been recovered from two successions of the Hannibal Shale in Missouri, U.S.A., which is the lowermost Carboniferous unit in the Mississippi Valley. The assemblages are dominated by acanthomorph acritarchs, with Micrhystridium stellatum being the principal species. The miospore assemblages are well-preserved and of low taxonomic diversity. They are dominated by long-ranging taxa that survived the latest Devonian mass extinction event. This assemblage closely resembles assemblages assigned to the Vallatisporites verrucosus-Retusotriletes incohatus (VI) Biozone of Western Europe. However the assemblage from the Mississippi Valley is relatively impoverished in comparison with European assemblages, and many key European zonal taxa are absent. Independent biostratigraphic correlation suggests that the Hannibal Shale is equivalent to the VIBiozone, the Cristatisporites hibernicus-Umbonatisporites distinctus (HD) Biozone, and possibly the lowermost part of the Spelaeotriletes balteatus-Rugospora polyptycha (BP) Biozone in Europe. This indicates the relatively condensed nature of the succession. Palynofacies analysis suggests a shelf to basin depositional environment for the Hannibal Shale; this is consistent with the paleogeographic location of this area during the Early Carboniferous.

Key Words: Mississippian • Kinderhookian • Hannibal Shale • U.S.A. • miospores • acritarchs • biostratigraphy






JOURNAL HOME HELP CONTACT PUBLISHER SUBSCRIBE ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 2009 by American Association of Stratigraphic Palynologists