Dayia-Isorthis Community in Nova Beds in Vidukle-61 & Virbalis-5 boreholes: Ludlow, Lithuania
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Rhynchonellata
- Athyridida
- Dayiidae
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Dayia navicula
(Sowerby 1839)
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Rhynchonellata
- Atrypida
- Septatrypidae
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Atrypoidea sp.
Mitchell and Dun 1920
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Rhynchonellata
- Protorthida
- Skenidiidae
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Skenidioides lewisii
(Davidson 1848)
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Rhynchonellata
- Orthida
- Dalmanellidae
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Isorthis sp.
Kozlowski 1929
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Cephalopoda
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Nautiloidea indet.
Agassiz 1847
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Trilobita
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Trilobita indet.
Walch 1771
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Geography
| Country: | Lithuania |
| Coordinates: | 55.4° North, 22.9° East (view map) |
| Paleocoordinates: | 17.5° South, 0.9° East |
| Basis of coordinate: | based on nearby landmark |
| Geographic resolution: | local area |
Time
| Period: | Silurian | Epoch: | Ludlow |
| 10 m.y. bin: | Silurian 2 | ||
| Key time interval: | Ludlow | Zone: | Monograptus tauragensis |
| Age range of interval: | 427.40000 - 423.00000 m.y. ago |
Lithology and environment
| Primary lithology: | gray,green marl |
| Secondary lithology: | "limestone" |
| Includes fossils? | Y |
| Lithology description: "Occurs in greenish-gray and gray marls with organogenic-detrital (biomorphic) limestone inclusions belonging to the third facies zone. [Seems to replace Dayia community when there's less terrigenous material.] [Probably BA 3-4.] An environment less silty, less turbid, possibly more oxygenated as well, than that occupied by the Dayia Community...Most of the D. n. specimens are ticulated, but commonly disarticulated shells of other brachiopods indicates a moderate level of turbulence just above wave base, with normal oxygen levels [green-gray]." | |
| Environment: | marine indet. |
Taphonomy
Collection methods and comments
| Collection excludes: | some macrofossils |
| Reason for describing collection: | paleoecologic analysis |
| Collection method comments: I have not included abundance data given by author. | |
Metadata
| Database number: | 13772 | ||
| Authorizer: | M. Foote | Enterer: | M. Foote |
| Modifier: | M. Foote | Research group: | marine invertebrate |
| Created: | 2002-04-24 13:09:00 | Last modified: | 2006-09-15 15:14:05 |
| Access level: | the public | Released: | 2002-04-24 13:09:00 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 6146. | P. Musteikis and J. J. Paskevicius. 1999. Brachiopod communities of the Lithuanian Silurian. In A. J. Boucot, J. D. Lawson (eds.), Paleocommunities--a case study from the Silurian and Lower Devonian 305-326 [M. Foote/M. Foote/P. Wagner] |