Edgewood Group, Locality B: Llandovery, Missouri
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Rhynchonellata
- Pentamerida
- Virgianidae
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Brevilamnulella thebesensis
(Savage 1913)
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Rhynchonellata
- Atrypida
- Atrypinidae
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? Eospirigerina putilla
(Hall and Clarke 1894)
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| recombined as Atrypa putilla | ||||||||||
| originally entered as "? Eospirigerina putilla" | ||||||||||
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Rhynchonellata
- Athyridida
- Meristellidae
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Cryptothyrella ovoides
(Savage 1913)
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| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Missouri | County: | Pike |
| Coordinates: | 39.4° North, 91.1° West (view map) | ||||
| Paleocoordinates: | 22.2° South, 58.4° West | ||||
| Basis of coordinate: | based on nearby landmark | ||||
| Geographic resolution: | small collection |
Time
| Period: | Silurian | Epoch: | Llandovery |
| 10 m.y. bin: | Silurian 1 | ||
| *Period: | Early/Lower Silurian | *Epoch: | Early/Lower Llandovery |
| Key time interval: | Llandovery | ||
| Age range of interval: | 443.80000 - 433.40000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Formation: | Bryant Knob | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: The whole of the formation here is 1.5 ft thick. | |||||
Lithology and environment
| Primary lithology: | ooidal,gray lithified "limestone" | ||
| Environment: | deep subtidal shelf | Tectonic setting: | cratonic basin |
| Geology comments: "Unrestricted offshore environment of moderate depth involving some water movement by waves and (or) currents." "Light gray organo-detrital limestone; mostly spar cement, some oolites present." | |||
Taphonomy
| Modes of preservation: | body,replaced with silica |
Collection methods and comments
| Collection excludes: | some macrofossils |
| Collection methods: | field collection |
| Reason for describing collection: | taxonomic analysis |
| Taxonomic list comments:Brachiopods (articulated) only. | |
Metadata
| Database number: | 3349 | ||
| Authorizer: | J. Alroy | Enterer: | M. Sommers |
| Modifier: | C. Visaggi | Research group: | marine invertebrate |
| Created: | 1999-07-30 15:15:49 | Last modified: | 2004-03-11 16:25:09 |
| Access level: | the public | Released: | 2000-11-20 13:53:19 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 187. | T. W. Amsden. 1974. Late Ordovician and Early Silurian articulate brachiopods from Oklahoma, southwestern Illinois, and eastern Missouri. Bulletin - Oklahoma Geological Survey 119:1-154 [J. Alroy/M. Sommers/M. Uhen] |