Latest Sandbian brachiopods and chitinozoan biostratigraphy in North Estonia
The latest Sandbian brachiopods and chitinozoans were studied in the Kõrgessaare and Haapsalu drill cores of Estonia. The brachiopod fauna shows a gradual renewal through the Keila Regional Stage (RS), differently from the rather persistent association of chitinozoans. An exception is the uppermost...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Estonian Academy Publishers
2023-06-01
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| Series: | Estonian Journal of Earth Sciences |
| Subjects: | |
| Online Access: | https://kirj.ee/wp-content/plugins/kirj/pub/earth-1-2023-42-45_20230609161625.pdf |
| _version_ | 1797804397475921920 |
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| author | Linda Hints Jaak Nõlvak |
| author_facet | Linda Hints Jaak Nõlvak |
| author_sort | Linda Hints |
| collection | DOAJ |
| description | The latest Sandbian brachiopods and chitinozoans were studied in the Kõrgessaare and Haapsalu drill cores of Estonia. The brachiopod fauna shows a gradual renewal through the Keila Regional Stage (RS), differently from the rather persistent association of chitinozoans. An exception is the uppermost part of the stage, which differs in two sections in the taxonomic composition of chitinozoans and the occurrence of two species-level taxa of the Dalmanella kegelensis brachiopod group. D. kegelensis sensu lato has been considered an index taxon of the biozone in the Keila RS. It links the brachiopod faunas of North Estonia to those in NW Russia. In the latter region, the dolomitic and siliciclastic lagoonal and peritidal deposits overlying the strata with brachiopods of the D. kegelensis group are considered the youngest part of the Keila RS. |
| first_indexed | 2024-03-13T05:35:30Z |
| format | Article |
| id | doaj.art-68cc77c5710f4f54ac76a4ade2f2c57c |
| institution | Directory Open Access Journal |
| issn | 1736-4728 1736-7557 |
| language | English |
| last_indexed | 2024-03-13T05:35:30Z |
| publishDate | 2023-06-01 |
| publisher | Estonian Academy Publishers |
| record_format | Article |
| series | Estonian Journal of Earth Sciences |
| spelling | doaj.art-68cc77c5710f4f54ac76a4ade2f2c57c2023-06-14T07:33:30ZengEstonian Academy PublishersEstonian Journal of Earth Sciences1736-47281736-75572023-06-017214245https://doi.org/10.3176/earth.2023.50https://doi.org/10.3176/earth.2023.50Latest Sandbian brachiopods and chitinozoan biostratigraphy in North EstoniaLinda Hints0Jaak Nõlvak1Department of Geology, School of Science, Tallinn University of Technology, Ehitajate tee 5, 19086 Tallinn, Estonia; linda.hints@taltech.eeDepartment of Geology, School of Science, Tallinn University of Technology, Ehitajate tee 5, 19086 Tallinn, Estonia; jaak.nolvak@ttu.eeThe latest Sandbian brachiopods and chitinozoans were studied in the Kõrgessaare and Haapsalu drill cores of Estonia. The brachiopod fauna shows a gradual renewal through the Keila Regional Stage (RS), differently from the rather persistent association of chitinozoans. An exception is the uppermost part of the stage, which differs in two sections in the taxonomic composition of chitinozoans and the occurrence of two species-level taxa of the Dalmanella kegelensis brachiopod group. D. kegelensis sensu lato has been considered an index taxon of the biozone in the Keila RS. It links the brachiopod faunas of North Estonia to those in NW Russia. In the latter region, the dolomitic and siliciclastic lagoonal and peritidal deposits overlying the strata with brachiopods of the D. kegelensis group are considered the youngest part of the Keila RS.https://kirj.ee/wp-content/plugins/kirj/pub/earth-1-2023-42-45_20230609161625.pdfbrachiopodschitinozoanssandbianestonianw russiacorrelation |
| spellingShingle | Linda Hints Jaak Nõlvak Latest Sandbian brachiopods and chitinozoan biostratigraphy in North Estonia Estonian Journal of Earth Sciences brachiopods chitinozoans sandbian estonia nw russia correlation |
| title | Latest Sandbian brachiopods and chitinozoan biostratigraphy in North Estonia |
| title_full | Latest Sandbian brachiopods and chitinozoan biostratigraphy in North Estonia |
| title_fullStr | Latest Sandbian brachiopods and chitinozoan biostratigraphy in North Estonia |
| title_full_unstemmed | Latest Sandbian brachiopods and chitinozoan biostratigraphy in North Estonia |
| title_short | Latest Sandbian brachiopods and chitinozoan biostratigraphy in North Estonia |
| title_sort | latest sandbian brachiopods and chitinozoan biostratigraphy in north estonia |
| topic | brachiopods chitinozoans sandbian estonia nw russia correlation |
| url | https://kirj.ee/wp-content/plugins/kirj/pub/earth-1-2023-42-45_20230609161625.pdf |
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