Diacanthaspis (Acantholomina) minuta-Otarion Assemblage, Prague Basin: Gorstian - Ludfordian, Czech Republic
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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unclassified
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Porifera indet.
Grant 1836
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Strophomenata
- Strophomenida
- Shaleriidae
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Protoshaleria sp.
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Rhynchonellata
- Atrypida
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Atrypida indet.
Rzhonsnitskaya 1960
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Cephalopoda
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Nautiloidea indet.
Agassiz 1847
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Trilobita
- Proetida
- Otarionidae
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Otarion diffractum
Zenker 1833
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Trilobita
- Proetida
- Proetidae
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Prionopeltis praecedens
(Bouček 1935)
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Trilobita
- Odontopleurida
- Odontopleuridae
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Diacanthaspis (Acantholomina) minuta
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Ceratocephala sp.
Warder 1838
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Ostracoda
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Ostracoda indet.
Latreille 1802
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Pterobranchia
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Graptolithina indet.
Bronn 1849
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Crinoidea
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Crinoidea indet.
Miller 1821
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Geography
| Country: | Czech Republic |
| Coordinates: | 49.9° North, 14.2° East (view map) |
| Paleocoordinates: | 51.8° South, 57.3° East |
| Basis of coordinate: | based on political unit |
| Geographic resolution: | local area |
Time
| Period: | Silurian | Epoch: | Ludlow |
| Stage: | Gorstian - Ludfordian | 10 m.y. bin: | Silurian 2 |
| Key time interval: | Gorstian - Ludfordian | ||
| Age range of interval: | 427.4 - 423 m.y. ago |
Stratigraphy
| Formation: | Kopanina | ||||
| Stratigraphic resolution: | formation | ||||
| Stratigraphy comments: Lower Kopanina. | |||||
Lithology and environment
| Primary lithology: | volcaniclastic,gray,red or brown calcareous mudstone |
| Secondary lithology: | gray cherty/siliceous "limestone" |
| Lithology description: "The sediments show a predominance of brown and grey-brown lamintaed calcareous mudstones with tuffaceous admixture and frequent intercalations anc concretions of ine-grained grey limestones or dolomites, locally silicified." | |
| Environment: | marine indet. |
| Geology comments: "Trilobites commonly preserved...slightly disarticulated or complete...Fauna, usually concentrated in thin laminae...The facies is typically transitional between the carbonate and shale developments and its palaeogeographical position is analogous as that with the Mirapis- and Aulacopleura konincki Assemblages of Wenlockian age (a rather deep subtidal, lesser energy BA 4). | |
Taphonomy
Collection methods and comments
| Collection excludes: | some macrofossils |
| Reason for describing collection: | paleoecologic analysis |
| Taxonomic list comments:Only trilobites are listed to genus level, but many other groups reported present. | |
Metadata
| Database number: | 14126 | ||
| Authorizer: | M. Foote | Enterer: | M. Foote |
| Modifier: | M. Foote | Research group: | marine invertebrate |
| Created: | 2002-05-15 19:54:04 | Last modified: | 2006-09-15 15:14:05 |
| Access level: | the public | Released: | 2002-05-15 19:54:04 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 6191. | I. Chlupac. 1987. Ecostratigraphy of Silurian trilobite assemblages of the Barrandian area, Czechoslovakia. Newsletters on Stratigraphy 17(3):169-186 [M. Foote/M. Foote/M. Foote] |