Download the full-sized PDF of The occurrences of vertebrate fossils in the Deadhorse Coulee Member of the Milk River Formation and their implications for provincialism and evolution in the Santonian (Late Cretaceous) of North AmericaDownload the full-sized PDF



Permanent link (DOI):


Export to: EndNote  |  Zotero  |  Mendeley


This file is in the following communities:

Graduate Studies and Research, Faculty of


This file is in the following collections:

Theses and Dissertations

The occurrences of vertebrate fossils in the Deadhorse Coulee Member of the Milk River Formation and their implications for provincialism and evolution in the Santonian (Late Cretaceous) of North America Open Access


Other title
fossil vertebrates
Milk River Formation
Type of item
Degree grantor
University of Alberta
Author or creator
Larson, Derek W.
Supervisor and department
Currie, Philip J. (Biological Sciences)
Examining committee member and department
Brinkman, Donald B. (Biological Sciences)
Wilson, Mark V. H. (Biological Sciences)
Wolfe, Alexander P. (Earth and Atmospheric Sciences)
Department of Biological Sciences

Date accepted
Graduation date
Master of Science
Degree level
The Deadhorse Coulee Member of the Milk River Formation of southern Alberta preserves one of the oldest well-documented non-marine vertebrate assemblages in Canada. In this study, the taxonomic diversity of this member is updated, and vertebrate localities are placed in geographic and stratigraphic context. The stratigraphic provenance of specimens indicates all vertebrate material from this member is latest Santonian (83.5 Ma). A new species of turtle is described. Analyses of the rank and relative abundances of taxa support interpretations of this member as a prograding clastic wedge with localities approximately 40 km from the palaeoshoreline at time of deposition. Results support high local abundances of vertebrates in western North America, with faunal provincialism regulated by distance to the palaeoshoreline and mean annual temperatures. Morphologic changes in small theropod taxa through the latest Cretaceous of western North America act as a case study for evaluating species turnover of vertebrate microfossil material.
License granted by Derek Larson ( on 2010-08-20T22:16:29Z (GMT): Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of the above terms. The author reserves all other publication and other rights in association with the copyright in the thesis, and except as herein provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
Citation for previous publication

File Details

Date Uploaded
Date Modified
Audit Status
Audits have not yet been run on this file.
File format: pdf (Portable Document Format)
Mime type: application/pdf
File size: 36798766
Last modified: 2015:10:12 11:55:35-06:00
Filename: Larson_Derek_Fall_2010.pdf
Original checksum: ed8ac8eeb97d849e143024433a7174d8
Well formed: true
Valid: true
Status message: Too many fonts to report; some fonts omitted. Total fonts = 1340
File title: Larson_Derek_Fall_2010_Prefrontory_pages
File title: University of Alberta
File author: Faculty of Graduate Studies and Research
Page count: 297
Activity of users you follow
User Activity Date