Chitinozoans in the Wenlock–Ludlow boundary beds of the East Baltic
The distribution of chitinozoans in the Wenlock–Ludlow boundary beds was studied in five drill core sections of the East Baltic. It was established that most of the typical Wenlock chitinozoan species became extinct in the uppermost part of the Jaagarahu Stage. In the lower part of the Rootsiküla St...
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| Format: | Article |
| Language: | English |
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Estonian Academy Publishers
2007-06-01
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| Series: | Estonian Journal of Earth Sciences |
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| Online Access: | http://kirj.ee/public/Estonian_Journal_of_Earth_Sciences/2007/issue_2/earth_2007_2_4.pdf |
| _version_ | 1818421032962228224 |
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| author | Nestor, Viiu |
| author_facet | Nestor, Viiu |
| author_sort | Nestor, Viiu |
| collection | DOAJ |
| description | The distribution of chitinozoans in the Wenlock–Ludlow boundary beds was studied in five drill core sections of the East Baltic. It was established that most of the typical Wenlock chitinozoan species became extinct in the uppermost part of the Jaagarahu Stage. In the lower part of the Rootsiküla Stage the Sphaerochitina lycoperdoides Biozone was identified for the first time. The Conochitina postarmillata and Ancyrochitina desmea biozones were established in the Dubysa Formation of the Paadla Stage in the Ventspils and Pavilosta cores and in the Gorstian Stage of the Gussev-1 core. Two stratigraphically important new species, Rhabdochitina sera and Conochitina postarmillata, were described, and Eisenackitina lagena (Eisenack) was redescribed. |
| first_indexed | 2024-12-14T13:03:55Z |
| format | Article |
| id | doaj.art-e834ca6d06d144c2a65f19263a3c61ab |
| institution | Directory Open Access Journal |
| issn | 1736-4728 |
| language | English |
| last_indexed | 2024-12-14T13:03:55Z |
| publishDate | 2007-06-01 |
| publisher | Estonian Academy Publishers |
| record_format | Article |
| series | Estonian Journal of Earth Sciences |
| spelling | doaj.art-e834ca6d06d144c2a65f19263a3c61ab2022-12-21T23:00:21ZengEstonian Academy PublishersEstonian Journal of Earth Sciences1736-47282007-06-01562109128Chitinozoans in the Wenlock–Ludlow boundary beds of the East BalticNestor, ViiuThe distribution of chitinozoans in the Wenlock–Ludlow boundary beds was studied in five drill core sections of the East Baltic. It was established that most of the typical Wenlock chitinozoan species became extinct in the uppermost part of the Jaagarahu Stage. In the lower part of the Rootsiküla Stage the Sphaerochitina lycoperdoides Biozone was identified for the first time. The Conochitina postarmillata and Ancyrochitina desmea biozones were established in the Dubysa Formation of the Paadla Stage in the Ventspils and Pavilosta cores and in the Gorstian Stage of the Gussev-1 core. Two stratigraphically important new species, Rhabdochitina sera and Conochitina postarmillata, were described, and Eisenackitina lagena (Eisenack) was redescribed.http://kirj.ee/public/Estonian_Journal_of_Earth_Sciences/2007/issue_2/earth_2007_2_4.pdfchitinozoanscorrelationWenlockLudlowSilurianEast Baltic |
| spellingShingle | Nestor, Viiu Chitinozoans in the Wenlock–Ludlow boundary beds of the East Baltic Estonian Journal of Earth Sciences chitinozoans correlation Wenlock Ludlow Silurian East Baltic |
| title | Chitinozoans in the Wenlock–Ludlow boundary beds of the East Baltic |
| title_full | Chitinozoans in the Wenlock–Ludlow boundary beds of the East Baltic |
| title_fullStr | Chitinozoans in the Wenlock–Ludlow boundary beds of the East Baltic |
| title_full_unstemmed | Chitinozoans in the Wenlock–Ludlow boundary beds of the East Baltic |
| title_short | Chitinozoans in the Wenlock–Ludlow boundary beds of the East Baltic |
| title_sort | chitinozoans in the wenlock ludlow boundary beds of the east baltic |
| topic | chitinozoans correlation Wenlock Ludlow Silurian East Baltic |
| url | http://kirj.ee/public/Estonian_Journal_of_Earth_Sciences/2007/issue_2/earth_2007_2_4.pdf |
| work_keys_str_mv | AT nestorviiu chitinozoansinthewenlockludlowboundarybedsoftheeastbaltic |