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Cahabagnathus sweeti

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Figure  3 — 1,  Distribution of  <span class="search-highlight">Cahabagnathus</span>  in the United States.  2,  ...
Published: 01 November 2005
Figure 3 — 1, Distribution of Cahabagnathus in the United States. 2, Laurentian distribution of Cahabagnathus plotted on a Darriwilian paleogeographic map modified from Witzke (1990) and Poole et al. (1995) . 3, Occurrences of Cahabagnathus sweeti ( Bergström, 1971 ) plotted
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Occurrence of biofacies of the Chertovskian Horizon. II, Conodonts  Drepano...
Published: 01 April 2015
and Aparchitella sp., conodonts Phragmodus inflexus and Cahabagnathus sweeti , brachiopods Mimella panna and Oepikina tojoni , and trilobites Isalaux (I.) stricta and Monoracos lopatini . Other designations follow Figs. 1 and 2 .
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Conodont zones and stages of the Ordovician using the  Geologic Time Scale ...
Published: 01 November 2014
anserinus , Cahabagnathus sweeti , Baltoniodus variabilis , Plectodina aculeata , Erismodus quadridactylus , Baltoniodus gerdae , Belodina compressa , Baltoniodus alobatus , Phragmodus undatus , Plectodina tenuis , Belodina confluens , Oulodus velicuspus , Oulodus robustus , Amorphognathus
Journal Article
Published: 01 November 2005
Journal of Paleontology (2005) 79 (6): 1131–1142.
...Figure 3 — 1, Distribution of Cahabagnathus in the United States. 2, Laurentian distribution of Cahabagnathus plotted on a Darriwilian paleogeographic map modified from Witzke (1990) and Poole et al. (1995) . 3, Occurrences of Cahabagnathus sweeti ( Bergström, 1971 ) plotted...
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Journal Article
Published: 01 July 2013
Russ. Geol. Geophys. (2013) 54 (7): 707–723.
..., near the Igirma River, the section contains more siltstones and individual interbeds of green and spotted mudstones. The mudstone interbeds are especially frequent in the Ancherikovo Formation in outcrop 1, near the Kuta River. The section here is constrained by conodonts Cahabagnathus sweeti Bergst...
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Some of the Siberian Ordovician conodont taxa playing the key role in corre...
Published: 01 April 2015
Tunguska River, Chertovskian Horizon, sample T-11, ×58; 6, Cahabagnathus sweeti (Bergström): Stony Tunguska River, Chertovskian Horizon, sample T-11, ×58; 7, Ptiloconus? anomalis (Moskalenko): Stony Tunguska River, Kirenskian–Kudrian Horizon, sample T-6, ×58; 8, Coleodus mirabilis Moskalenko
Journal Article
Published: 01 April 2015
Russ. Geol. Geophys. (2015) 56 (4): 594–610.
... Tunguska River, Chertovskian Horizon, sample T-11, ×58; 6, Cahabagnathus sweeti (Bergström): Stony Tunguska River, Chertovskian Horizon, sample T-11, ×58; 7, Ptiloconus? anomalis (Moskalenko): Stony Tunguska River, Kirenskian–Kudrian Horizon, sample T-6, ×58; 8, Coleodus mirabilis Moskalenko...
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Journal Article
Journal: GSA Bulletin
Published: 01 November 2014
GSA Bulletin (2014) 126 (11-12): 1551–1568.
... anserinus , Cahabagnathus sweeti , Baltoniodus variabilis , Plectodina aculeata , Erismodus quadridactylus , Baltoniodus gerdae , Belodina compressa , Baltoniodus alobatus , Phragmodus undatus , Plectodina tenuis , Belodina confluens , Oulodus velicuspus , Oulodus robustus , Amorphognathus...
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Journal Article
Published: 29 May 2017
Geological Magazine (2018) 155 (7): 1507–1522.
... on the associations of species present, it appears that the sampled beds contained some typical shallow-water specimens that are likely to have been transported. Species interpreted to represent taxa living in the local platform slope environment include Cahabagnathus sweeti, Periodon aculeatus, Protopanderodus...
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Journal Article
Published: 01 January 2003
Journal of Paleontology (2003) 77 (1): 146–171.
... subzone interval, were proposed by Pyle and Barnes (2002) based on the first appearance of the nominate species: Tropodus sweeti (Serpagli), Bergstroemognathus extensus (Graves and Ellison), and Juanognathus variabilis Serpagli. The uppermost Kechika Formation lies within the T. sweeti Subzone...
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Journal Article
Published: 22 August 2016
Geological Magazine (2017) 154 (5): 1105–1116.
.... protoanserinus , Baltoniodus prevariabilis–variabilis , Periodon aculeatus and Strachanognathus parvus Rhodes. Late forms of E. lindstroemi , P. anserinus , Cahabagnathus sweeti (Bergström) and Baltoniodus variabilis (Bergström). Bergström ( 1971 ) proposed two informal subzones, named...
Journal Article
Published: 01 April 2015
Russ. Geol. Geophys. (2015) 56 (4): 611–630.
... and Aparchitella sp., conodonts Phragmodus inflexus and Cahabagnathus sweeti , brachiopods Mimella panna and Oepikina tojoni , and trilobites Isalaux (I.) stricta and Monoracos lopatini . Other designations follow Figs. 1 and 2 . ...
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Journal Article
Published: 01 May 2011
Scottish Journal of Geology (2011) 47 (1): 57–66.
... ; see Williams et al . 2004 and Zalasiewicz et al . 2009 for the equivalent stratigraphic level in Scotland). The Bromide Formation is also considered to be of Sandbian age (Late Whiterockian to Early Mohawkian regional stages) based on the conodonts Cahabagnathus sweeti , Eoplacognathus...
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Journal Article
Published: 16 January 2014
Canadian Journal of Earth Sciences (2014) 51 (2): 142–155.
...) and a chart of selected Late Cambrian and Ordovician conodont species distribution in North American Midcontinent Province ( Sweet 1988 , chart 1), A. delicatulus ranges from middle Cahabagnathus sweeti Zone to lower Erismodus quadridactylus Zone across the boundary between Whiterockian and Mohawkian...
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Series: AAPG Memoir
Published: 01 January 2012
DOI: 10.1306/13331506M983505
EISBN: 9781629810201
... abundant trace fossils (Hofmann, 1979). It thickens eastward across the em-bayment from 35 to 45 m (115–150 ft) in the Ottawa region (Williams, 1991) to approximately 60 m (∼200 ft) near the Quebec border. A minimum early Chazyan age (between the H. holodentata and Cahabagnathus sweeti Zones; Figure 4...
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Journal Article
Published: 03 June 2013
Canadian Journal of Earth Sciences (2013) 50 (8): 808–825.
... in both the Composite Standard Section (CSS) ( Sweet 1984 ) and a chart of selected Late Cambrian and Ordovician conodont species distribution in North American Midcontinent Province ( Sweet 1988 ). Appalachignathus delicatulus ranges from middle Cahabagnathus sweeti Zone to lower Erismodus...
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Journal Article
Published: 01 January 2001
Journal of Paleontology (2001) 75 (1): 186–207.
... presence in Iran in the lower member of the Katkoyeh Formation suggests this unit is of comparable age. Appalachignathus delicatulus first appears in the Cahabagnathus sweeti Zone and ranges through the Plectodina aculeata Zone into the lower Erismodus quadridactylus Zone of the North American...
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Journal Article
Published: 22 February 2016
Geological Magazine (2017) 154 (2): 334–353.
... Appalachians spanning from the Histiodella holodentata to the Cahabagnathus sweeti conodont zones, while the peak interval of the MDICE is present in the uppermost H. holodentata and Phragmodus polonicus zones ( Fig. 10 ). The δ 13 C carb record documented by Lehnert...
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Journal Article
Published: 01 July 2021
Journal of Paleontology (2021) 95 (4): 805–826.
... rather different. An and Zheng ( 1990 , Chart 4) correlated the T. sishuiensis - E. typus Biozone with the middle part of the Cahabagnathus sweeti Biozone to upper part of the Belodina compressa Biozone of the North American Midcontinent succession, whereas later, An ( 1993 , Chart 1) compared...
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Series: Geological Society, London, Special Publications
Published: 17 May 2023
DOI: 10.1144/SP533-2022-193
EISBN: 9781786209658
... 1979 ) and crinoid stems ( Koch 1929 a , pp. 22–24), is noted, which together indicates a Whiterockian age ( Troedsson 1928 ). Conodonts recorded from the upper formation are Whiterockian/Darriwilian ( Figs 2 & 3 ; i.e. Cahabagnathus sweeti Zone) with a possible range into the basal...
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