Composition and significance of the Katian (Upper Ordovician) conodont fauna of the Vaux Limestone (‘Calcaire des Vaux’) in Normandy, France
Study of new conodont collections from the Vaux Limestone exposed at its classical locality at Saint-Hilaire-la-Gérard in the Sées syncline, the conodont fauna of which was previously described in a preliminary way by Weyant et al. (1977, Un épisode calcaire ashgillien dans l’est du Massif armoricai...
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| Format: | Article |
| Language: | English |
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Estonian Academy Publishers
2014-12-01
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| Series: | Estonian Journal of Earth Sciences |
| Subjects: | |
| Online Access: | http://www.kirj.ee/public/Estonian_Journal_of_Earth_Sciences/2014/issue_4/earth-2014-4-214-219.pdf |
| _version_ | 1811256071446069248 |
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| author | Annalisa Ferretti Andrea Messori Stig M. Bergström |
| author_facet | Annalisa Ferretti Andrea Messori Stig M. Bergström |
| author_sort | Annalisa Ferretti |
| collection | DOAJ |
| description | Study of new conodont collections from the Vaux Limestone exposed at its classical locality at Saint-Hilaire-la-Gérard in the Sées syncline, the conodont fauna of which was previously described in a preliminary way by Weyant et al. (1977, Un épisode calcaire ashgillien dans l’est du Massif armoricain; incidence sur l’âge des dépôts glacio-marins fini-ordoviciens. Comptes Rendus de l'Académie des Sciences, Paris, 284, Série D, 1147–1149), has provided significant new information about Late Ordovician conodonts from Normandy. A more precise age of this formation has been established based on an unexpectedly abundant conodont fauna of low diversity. Representatives of Amorphognathus, Hamarodus, Sagittodontina, Scabbardella and Eocarniodus are present and the fauna is referable to the middle Katian–lower Hirnantian A. ordovicicus Zone. Our study, the first illustrating Ordovician conodonts from Normandy, shows that the fauna is closely similar to middle Katian faunas from other parts of continental Europe and represents the Sagittodontina robusta–Scabbardella altipes biofacies of the Mediterranean Province. |
| first_indexed | 2024-04-12T17:34:34Z |
| format | Article |
| id | doaj.art-22cfff71bad449248c6e6b5d31c140ca |
| institution | Directory Open Access Journal |
| issn | 1736-4728 1736-7557 |
| language | English |
| last_indexed | 2024-04-12T17:34:34Z |
| publishDate | 2014-12-01 |
| publisher | Estonian Academy Publishers |
| record_format | Article |
| series | Estonian Journal of Earth Sciences |
| spelling | doaj.art-22cfff71bad449248c6e6b5d31c140ca2022-12-22T03:23:01ZengEstonian Academy PublishersEstonian Journal of Earth Sciences1736-47281736-75572014-12-0163421421910.3176/earth.2014.2110.3176/earth.2014.21Composition and significance of the Katian (Upper Ordovician) conodont fauna of the Vaux Limestone (‘Calcaire des Vaux’) in Normandy, FranceAnnalisa Ferretti0Andrea Messori1Stig M. Bergström2Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Modena e Reggio Emilia, l.go S. Eufemia 19, I-41121 Modena, Italy; ferretti@unimore.itDipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Modena e Reggio Emilia, l.go S. Eufemia 19, I-41121 Modena, Italy; andrea.alexander.messori@gmail.comSchool of Earth Sciences, Division of Earth History, The Ohio State University, 125 S. Oval Mall, Columbus, Ohio 43210, USA; Bergstrom.1@osu.eduStudy of new conodont collections from the Vaux Limestone exposed at its classical locality at Saint-Hilaire-la-Gérard in the Sées syncline, the conodont fauna of which was previously described in a preliminary way by Weyant et al. (1977, Un épisode calcaire ashgillien dans l’est du Massif armoricain; incidence sur l’âge des dépôts glacio-marins fini-ordoviciens. Comptes Rendus de l'Académie des Sciences, Paris, 284, Série D, 1147–1149), has provided significant new information about Late Ordovician conodonts from Normandy. A more precise age of this formation has been established based on an unexpectedly abundant conodont fauna of low diversity. Representatives of Amorphognathus, Hamarodus, Sagittodontina, Scabbardella and Eocarniodus are present and the fauna is referable to the middle Katian–lower Hirnantian A. ordovicicus Zone. Our study, the first illustrating Ordovician conodonts from Normandy, shows that the fauna is closely similar to middle Katian faunas from other parts of continental Europe and represents the Sagittodontina robusta–Scabbardella altipes biofacies of the Mediterranean Province.http://www.kirj.ee/public/Estonian_Journal_of_Earth_Sciences/2014/issue_4/earth-2014-4-214-219.pdfconodontsLate OrdovicianbiostratigraphyNormandyFrance. |
| spellingShingle | Annalisa Ferretti Andrea Messori Stig M. Bergström Composition and significance of the Katian (Upper Ordovician) conodont fauna of the Vaux Limestone (‘Calcaire des Vaux’) in Normandy, France Estonian Journal of Earth Sciences conodonts Late Ordovician biostratigraphy Normandy France. |
| title | Composition and significance of the Katian (Upper Ordovician) conodont fauna of the Vaux Limestone (‘Calcaire des Vaux’) in Normandy, France |
| title_full | Composition and significance of the Katian (Upper Ordovician) conodont fauna of the Vaux Limestone (‘Calcaire des Vaux’) in Normandy, France |
| title_fullStr | Composition and significance of the Katian (Upper Ordovician) conodont fauna of the Vaux Limestone (‘Calcaire des Vaux’) in Normandy, France |
| title_full_unstemmed | Composition and significance of the Katian (Upper Ordovician) conodont fauna of the Vaux Limestone (‘Calcaire des Vaux’) in Normandy, France |
| title_short | Composition and significance of the Katian (Upper Ordovician) conodont fauna of the Vaux Limestone (‘Calcaire des Vaux’) in Normandy, France |
| title_sort | composition and significance of the katian upper ordovician conodont fauna of the vaux limestone calcaire des vaux in normandy france |
| topic | conodonts Late Ordovician biostratigraphy Normandy France. |
| url | http://www.kirj.ee/public/Estonian_Journal_of_Earth_Sciences/2014/issue_4/earth-2014-4-214-219.pdf |
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