List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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unclassified
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Eomartinopsis ludloviensis
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Rhynchonellata
- Athyridida
- Dayiidae
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Dayia navicula
(Sowerby 1839)
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| (= D. bohemica) | ||||||||||
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Rhynchonellata
- Atrypida
- Atrypidae
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Atrypa reticularis
(Linnaeus 1758)
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| original and current combination Anomia reticularis | ||||||||||
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Rhynchonellata
- Orthida
- Dalmanellidae
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Isorthis sp.
Kozlowski 1929
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Rhynchonellata
- Rhynchonellida
- Trigonirhynchiidae
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Microsphaeridiorhynchus nucula
(Sowerby 1839)
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Strophomenata
- Strophomenida
- Strophochonetidae
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Protochonetes stonishkensis
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Protochonetes piltenensis
Rybnikova 1967
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Strophomenata
- Strophomenida
- Rafinesquinidae
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Leptaena venzavensis
(Rybnikova 1966)
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| synonym of Leptaena (Leptaena) depressa | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Estonia |
| Coordinates: | 58.1° North, 22.2° East (view map) |
| Paleocoordinates: | 14.2° South, 1.1° West |
| Basis of coordinate: | based on political unit |
| Geographic resolution: | basin |
Stratigraphy
| Stratigraphy comments: "The earliest occurrences of Dayia navicula in the E Baltic are from the Ludlow, but most of them are in the Pridoli." |
Lithology and environment
| Environment: | marine indet. |
| Geology comments: "The medium diversity Dayia Community forms the most offshore, basinal belt in the Baltic region. the high dominance, `pure' Dayia Community has the same position in the Baltic region Ludlow. The intervals with D. navicula occur chiefly in offlap situations. Nestor & Einasto (1982) concluded that the Dayia-bearing sediments represent an alternation of open shelf and slope sediments. Kaljo & Rubel (1982) assigned the community to a BA 4-5 position. The Dayia Community has been previously assigned a quiet water BA 3 position (Boucot 1975), but Musteikis (ch. 21, this volume) provides evidence that the community can also occur in restrictive (possibly dysaerobic), quiet water BA 4 environments as well. It occurs as a single taxon community, featuring largely articulated specimens, that is interpreted as BA 5...and as a low diversity BA 4 unit." | |
Taphonomy
Collection methods and comments
| Reason for describing collection: | paleoecologic analysis |
Metadata
| Database number: | 13733 | ||
| Authorizer: | M. Foote | Enterer: | M. Foote |
| Modifier: | M. Foote | Research group: | marine invertebrate |
| Created: | 2002-04-22 22:32:30 | Last modified: | 2006-09-15 15:14:05 |
| Access level: | the public | Released: | 2002-04-22 22:32:30 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 6144. | R. Mannil and M. Rubel. 1999. Selected brachiopod and trilobite communities of the East Baltic Silurian. In A. J. Boucot, J. D. Lawson (eds.), Paleocommunities--a case study from the Silurian and Lower Devonian 253-270 [M. Foote/M. Foote/P. Wagner] |