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Middle Devonian (Eifelian) conodonts of the genus Polygnathus from the Wadleigh Limestone, southeastern Alaska
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Conodonts from the lowest known horizon of the Wadleigh Limestone, southeastern Alaska, include Polygnathus trigonicus Bischoff and Ziegler, P angustipennatus.Abstract:
Conodonts from the lowest known horizon of the Wadleigh Limestone, southeastern Alaska, include Polygnathus trigonicus Bischoff and Ziegler, P angustipennatus Bischoff and Ziegler, P angusticostaread more
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Devonian conodonts of probable early Frasnian age from the Coronados Islands of southeastern Alaska
N. M. Savage,C. A. Funai +1 more
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Trends in the development and cyclic patterns of middle and upper devonian buildups
TL;DR: A comprehensive review of Middle and Upper Devonian reefs, based on about 350 papers describing the reef development within 44 areas all over the world, resulted in the recognition of four reef megacycles as mentioned in this paper.
Journal Article
Conodont biostratigraphy and biofacies of lower middle devonian limestones, north-central ohio
TL;DR: In the early Eifelian (early Middle Devonian) time, the Detroit River Group of north-central Ohio was transgressively displaced by normal-marine environments represented by the Columbus Limestone, which ranges from the middle costatus costatus Zone into the australis Zone and is capped by a wave-eroded surface.
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Conodonts from the Middle Devonian Plum Brook Shale of north-central Ohio
TL;DR: The Plum Brook Shale of north-central Ohio lies disconformably between the Eifelian (lower middle Devonian) Delaware Limestone and the middle Givetian (upper Middle Devonian), and much of this section may also belong to the ensensis Zone as mentioned in this paper.
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The Alexander Terrane of Alaska - a Displaced Fragment of Northeast Russia?: Evidence from Silurian-middle Devonian Megafossils and Stratigraphy
TL;DR: A detailed overview of the Silurian to Middle Devonian faunas of the Alexander terrane, along with its gross stratigraphic succession, indicates that it is also closely allied with the Omulevsk Mountains (Omulevka terrane) of Northeast Russia as discussed by the authors.
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On Conodonts from the Chazy and Cincinnati Group of the Cambro-Silurian, and from the Hamilton and Genesee-Shale Divisions of the Devonian, in Canada and the United States
TL;DR: In this paper, a great variety of forms which I have collected within the last two years from several different formations in North America are described, and they will at least add something to our previous knowledge, and thus assist in reaching a decision on the subject.
Journal ArticleDOI
Devonian conodont apparatuses and their vicarious skeletal elements
Gilbert Klapper,Graeme M. Philip +1 more
TL;DR: In this article, the authors recognized four types of skeletal apparatuses of Devonian compound and platform conodonts, which conform in their basic plan to those already established in the Ordovician, Silurian, and Carboniferous, emphasizing the persistence of but a few structural types in the Paleozoic.
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