Dayia Community in Pagegiai Formation: Ludlow, Lithuania
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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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 | |||||||
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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] |