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The Early to Middle Ordovician graptolite faunal succession of the Trail Creek region, central Idaho, U.S.A
Maletz, J. (State University of New York at Buffalo. Department of Geology)
Goldman, D. (University of Dayton. Department of Geological Sciences)
Cone, M. (State University of New York at Buffalo. Department of Geology)

Date: 2005
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.
Rights: Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan aquestes es distribueixin sota la mateixa llicència que regula l'obra original i es reconegui l'autoria de l'obra original. Creative Commons
Language: Anglès
Document: Article ; recerca ; Versió publicada
Subject: North America ; Ordovician ; Arenig ; Graptolites ; Biostratigraphy
Published in: Geologica acta, Vol. 3, Núm. 4 (2005) , p. 395-409, ISSN 1696-5728

Adreça alternativa: https://raco.cat/index.php/GeologicaActa/article/view/82387
Adreça alternativa: https://revistes.ub.edu/index.php/GEOACTA/article/view/105.000001387
DOI: 10.1344/105.000001387


15 p, 1.3 MB

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Articles > Published articles > Geologica acta
Articles > Research articles

 Record created 2012-01-31, last modified 2024-02-20



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