Quick
Search: 		  
advanced search
 GSW Home   GeoRef Home   My GSW Alerts   Contact GSW   About GSW   Journals List   Help 
  Journal of Paleontology   Email Content Delivery
JOURNAL HOME HELP CONTACT PUBLISHER SUBSCRIBE ARCHIVE SEARCH TABLE OF CONTENTS
Journal of Paleontology; July 2005; v. 79; no. 4; p. 774-789; DOI: 10.1666/0022-3360(2005)079[0774:DCBPAU]2.0.CO;2
© 2005 Paleontological Society
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
Right arrow Citation Map
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in Web of Science
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by JOHNSTON, D. I.
Right arrow Articles by HENDERSON, C. M.
Right arrow Search for Related Content
GeoRef
Right arrow GeoRef Citation

DISRUPTED CONODONT BEDDING PLANE ASSEMBLAGES, UPPER BAKKEN FORMATION (LOWER MISSISSIPPIAN) FROM THE SUBSURFACE OF WESTERN CANADA

DAVID I. JOHNSTON1 and CHARLES M. HENDERSON1

1 103-3017 Blakiston Dr. NW, Calgary, Alberta T2L 1L7, Canada, <johnstda{at}shaw.ca> and Applied Stratigraphy Research Group, Department of Geology and Geophysics, University of Calgary T2N 1N4, <charles.henderson{at}ucalgary.ca>

Disrupted conodont bedding plane assemblages are described from two laterally equivalent mudstone core samples of the Lower Mississippian upper shale member of the Bakken Formation in the subsurface of southeastern Alberta and southwestern Saskatchewan. The core bedding plane conodont assemblage representing the bispathodid biofacies from southeastern Alberta (Locality 1) shows little evidence of winnowing. Thus, this assemblage, along with collections of discrete conodont elements, is a potential source of data for reconstructing paleoecology and taphonomy as well as for testing apparatus reconstructions. The assemblage representing the siphonodellid biofacies from the southwestern Saskatchewan core (Locality 2) shows evidence of a greater degree of breakage and winnowing of elements, making it less suitable as a source of data. Postmortem compaction of mudstones and processing methods also affect the preservation of the conodont elements, due to breakage along lines of fracture in the elements. An apparatus reconstruction is proposed for Prioniodina aff. P. curvidens.






JOURNAL HOME HELP CONTACT PUBLISHER SUBSCRIBE ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 2009 by Paleontological Society