Dayia Community in Pagegiai Formation: Ludlow, Lithuania
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Rhynchonellata
- Orthida
- Dalmanellidae
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Isorthis ovalis
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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 | |||||||
Rhynchonellata
- Athyridida
- Dayiidae
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Dayia navicula
(Sowerby 1839)
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Strophomenata
- Strophomenida
- Strophochonetidae
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Protochonetes stonishkensis
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see common names |
Geography
Country: | Lithuania |
Coordinates: | 55.3° North, 22.3° East (view map) |
Paleocoordinates: | 17.8° South, 0.7° East |
Basis of coordinate: | based on nearby landmark |
Geographic resolution: | local area |
Time
Period: | Silurian | Epoch: | Ludlow |
10 m.y. bin: | Silurian 2 | *Epoch: | Late/Upper Ludlow |
Key time interval: | Ludlow | ||
Age range of interval: | 427.40000 - 423.00000 m.y. ago | ||
* legacy (obsolete) database fields |
Stratigraphy
Formation: | Pagegiai |
Stratigraphic resolution: | formation |
Lithology and environment
Primary lithology: | gray,green marl |
Secondary lithology: | argillaceous "limestone" |
Includes fossils? | Y |
Lithology description: "Occurs in greenish-gray and gray marls with interbeds of argillaceous limestones belonging to the fourth facies zones...Sedimentation...took place in a pericratonic basin under conditions of increased terrigenous material supply. [Conflicting evidence on depth discussed in detail: BA assignment difficult: perhaps 2,3, or 4]. More than 95% of D. n. specimens articulated..[indicating] quiet water...below or at wave base under dysaerobic conditions (suggested by gray...marl)." | |
Environment: | marine indet. |
Taphonomy
Collection methods and comments
Reason for describing collection: | paleoecologic analysis |
Collection method comments: I have not included abundance data given by author. |
Metadata
Database number: | 13765 | ||
Authorizer: | M. Foote | Enterer: | M. Foote |
Modifier: | M. Foote | Research group: | marine invertebrate |
Created: | 2002-04-24 12:32:43 | Last modified: | 2006-09-15 15:14:05 |
Access level: | the public | Released: | 2002-04-24 12:32:43 |
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] |