Geology Faculty Publications
Document Type
Article
Publication Date
2005
Publication Source
Geologica Acta
Abstract
The Middle Ordovician graptolite biostratigraphy of the Trail Creek region of Idaho is reviewed and revised. The oldest known fauna belongs to the Didymograptellus bifidus Biozone. The Isograptus victoriae lunatus, I. victoriae maximodivergens, Oncograptus, Undulograptus austrodentatus and Holmograptus lentus Biozones can be differentiated. Pseudophyllograptus archaios (Braithwaite) is found for the first time in the Trail Creek region. This species represents a conspicuous North American mid-continent faunal element and enables the correlation of the endemic P. archaios-C. flexilis Biozone of Utah with the D. bifidus Biozone of the Pacific faunal realm, thus, providing an important tool for the correlation of endemic mid-continent faunas with the pandemic deep water graptolite faunas.
Inclusive pages
395-409
ISBN/ISSN
1695-6133
Publisher
University of Barcelona and the Spanish Research Council
Volume
3
Issue
4
Place of Publication
Barcelona, Spain
Peer Reviewed
yes
eCommons Citation
Maletz, Jörg; Goldman, Daniel; and Cone, M., "The Early to Middle Ordovician Graptolite Faunal Succession of the Trail Creek Region, Central Idaho, U.S.A." (2005). Geology Faculty Publications. 4.
https://ecommons.udayton.edu/geo_fac_pub/4
Comments
Copyright © 2005, from journal Geologica Acta under the Attribution-Share Alike Creative Commons License (
). This license allows others to alter, remix or build upon a paper and the resulting work may be distributed under the same or similar license to this one. Permission documentation is on file.
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