Rugose corals across the Devonian-Carboniferous boundary in NW Turkey
An uppermost Famennian (Strunian) coral assemblage has been recovered in the middle part of the Yılanlı Formation of the Istanbul Zone (Zonguldak and Bartın areas, NW Turkey). In the Bartın area, the studied fossiliferous interval corresponds to a c. 30 m-thick unit of bioclastic to peloidal wackest...
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| Format: | Article |
| Language: | English |
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Institute of Paleobiology PAS
2016-02-01
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| Series: | Acta Palaeontologica Polonica |
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| Online Access: | http://www.app.pan.pl/archive/published/app61/app000612014.pdf |
| _version_ | 1818472510834868224 |
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| author | Julien Denayer |
| author_facet | Julien Denayer |
| author_sort | Julien Denayer |
| collection | DOAJ |
| description | An uppermost Famennian (Strunian) coral assemblage has been recovered in the middle part of the Yılanlı Formation of the Istanbul Zone (Zonguldak and Bartın areas, NW Turkey). In the Bartın area, the studied fossiliferous interval corresponds to a c. 30 m-thick unit of bioclastic to peloidal wackestone to packstone grading to grainstone and including two stromatoporoid biostromes. In the Zonguldak area, 60 km westward, the bioclastic facies is dominant. The rugose corals are mainly solitary taxa belonging to the genera Campophyllum, Bounophyllum, Amplexocarinia, and ?Metriophyllum, and only one colonial genus occurs: Pseudoendophyllum. This fauna is similar to that documented in Europe. The campophyllids and dibunophyllids are the main component of the uppermost Famennian assemblages in S Belgium, N France, W Germany, NW and S Poland. The endophyllids occur in S Poland, Novaya Zemlya, and in the Ural Mountains. The Istanbul Zone is supposed to be situated in the central part of the Palaeotethys Ocean, along the southern margin of Laurussia during the uppermost Devonian and Carboniferous. The rugose corals indicate some relationship with the eastern part of Laurussia, or that both areas were under a common marine influence at this time. The global Hangenberg event was not recognized in the Turkish localities, except for the disappearance of the corals, occurring less than 19 m below the Devonian–Carboniferous boundary based on the foraminifers. There is no major facies change through the boundary and the first Carboniferous corals (small Uralinia and Caninophyllum) appear 6 m above the D–C boundary. The new species Caninophyllum charli sp. nov. is described from the upper part of the lower Tournaisian. |
| first_indexed | 2024-04-14T04:08:09Z |
| format | Article |
| id | doaj.art-3b2caba081ec4a309587dba30fa1f43a |
| institution | Directory Open Access Journal |
| issn | 0567-7920 1732-2421 |
| language | English |
| last_indexed | 2024-04-14T04:08:09Z |
| publishDate | 2016-02-01 |
| publisher | Institute of Paleobiology PAS |
| record_format | Article |
| series | Acta Palaeontologica Polonica |
| spelling | doaj.art-3b2caba081ec4a309587dba30fa1f43a2022-12-22T02:13:17ZengInstitute of Paleobiology PASActa Palaeontologica Polonica0567-79201732-24212016-02-016115170http://dx.doi.org/10.4202/app.00061.2014Rugose corals across the Devonian-Carboniferous boundary in NW TurkeyJulien Denayer0Service de Paléontologie animale et humaine, Département de Géologie, Université de Liège, Bat. B18, Allée du Six-Août, SartTilman, B-4000 Liège, Belgium; current address: Integrated Palaeoenvironmental Research Group, School of Earth Sciences, University of Queensland, QLD 4072, St-Lucia, AustraliaAn uppermost Famennian (Strunian) coral assemblage has been recovered in the middle part of the Yılanlı Formation of the Istanbul Zone (Zonguldak and Bartın areas, NW Turkey). In the Bartın area, the studied fossiliferous interval corresponds to a c. 30 m-thick unit of bioclastic to peloidal wackestone to packstone grading to grainstone and including two stromatoporoid biostromes. In the Zonguldak area, 60 km westward, the bioclastic facies is dominant. The rugose corals are mainly solitary taxa belonging to the genera Campophyllum, Bounophyllum, Amplexocarinia, and ?Metriophyllum, and only one colonial genus occurs: Pseudoendophyllum. This fauna is similar to that documented in Europe. The campophyllids and dibunophyllids are the main component of the uppermost Famennian assemblages in S Belgium, N France, W Germany, NW and S Poland. The endophyllids occur in S Poland, Novaya Zemlya, and in the Ural Mountains. The Istanbul Zone is supposed to be situated in the central part of the Palaeotethys Ocean, along the southern margin of Laurussia during the uppermost Devonian and Carboniferous. The rugose corals indicate some relationship with the eastern part of Laurussia, or that both areas were under a common marine influence at this time. The global Hangenberg event was not recognized in the Turkish localities, except for the disappearance of the corals, occurring less than 19 m below the Devonian–Carboniferous boundary based on the foraminifers. There is no major facies change through the boundary and the first Carboniferous corals (small Uralinia and Caninophyllum) appear 6 m above the D–C boundary. The new species Caninophyllum charli sp. nov. is described from the upper part of the lower Tournaisian.http://www.app.pan.pl/archive/published/app61/app000612014.pdfRugosapalaeobiogeographyHangenberg eventStrunianHastarianFamennianTournaisianTurkey |
| spellingShingle | Julien Denayer Rugose corals across the Devonian-Carboniferous boundary in NW Turkey Acta Palaeontologica Polonica Rugosa palaeobiogeography Hangenberg event Strunian Hastarian Famennian Tournaisian Turkey |
| title | Rugose corals across the Devonian-Carboniferous boundary in NW Turkey |
| title_full | Rugose corals across the Devonian-Carboniferous boundary in NW Turkey |
| title_fullStr | Rugose corals across the Devonian-Carboniferous boundary in NW Turkey |
| title_full_unstemmed | Rugose corals across the Devonian-Carboniferous boundary in NW Turkey |
| title_short | Rugose corals across the Devonian-Carboniferous boundary in NW Turkey |
| title_sort | rugose corals across the devonian carboniferous boundary in nw turkey |
| topic | Rugosa palaeobiogeography Hangenberg event Strunian Hastarian Famennian Tournaisian Turkey |
| url | http://www.app.pan.pl/archive/published/app61/app000612014.pdf |
| work_keys_str_mv | AT juliendenayer rugosecoralsacrossthedevoniancarboniferousboundaryinnwturkey |