Garth, G26A,B: Rhuddanian, United Kingdom
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Rhynchonellata
- Athyridida
- Meristellidae
|
||||||||||
|
? Hyattidina augustifrons
(Salter 1851)
|
93 specimens | |||||||||
| recombined as Hindella angustifrons | ||||||||||
| A87, B6 - originally entered as "? Hyattidina augustifrons" | ||||||||||
|
Rhynchonellata
- Protorthida
- Skenidiidae
|
||||||||||
|
Skenidioides ? woodlandiense
(Davidson 1882)
|
1 specimen | |||||||||
| recombined as Skenidioides woodlandiensis | ||||||||||
| A - originally entered as "Skenidioides ? woodlandiense" | ||||||||||
|
Rhynchonellata
- Orthida
- Hesperorthidae
|
||||||||||
|
Dolerorthis gwalia
|
1 specimen | |||||||||
| quest. ident.; A | ||||||||||
|
Rhynchonellata
- Orthida
- Rhipidomellidae
|
||||||||||
|
Mendacella mullockiensis
(Davidson 1869)
|
2 specimens | |||||||||
| llandovery morph; B | ||||||||||
|
Rhynchonellata
- Atrypida
- Lissatrypidae
|
||||||||||
|
Meifodia prima
(Williams 1951)
|
2 specimens | |||||||||
| ssp. indet.; B | ||||||||||
|
Rhynchonellata
- Atrypida
- Atrypinidae
|
||||||||||
|
Plectatrypa tripartita
(de Sowerby and Murchison 1839)
|
3 specimens | |||||||||
| recombined as Eospirigerina tripartita | ||||||||||
| ssp. tripartita; A2, B1 | ||||||||||
|
Rhynchonellata
- Pentamerida
- Clorindidae
|
||||||||||
|
Clorindinae indet.
Rzhonsnitskaia 1956
|
4 specimens | |||||||||
| gen. et sp. indet.; B | ||||||||||
|
Rhynchonellata
- Pentamerida
- Stricklandiidae
|
||||||||||
|
Stricklandia lens
(Sowerby 1839)
|
10 specimens | |||||||||
| ssp. indet.; A1, B9 | ||||||||||
|
Strophomenata
- Strophomenida
- Sowerbyellidae
|
||||||||||
|
Eoplectodonta duplicata
(de Sowerby and Murchison 1839)
|
2 specimens | |||||||||
| recombined as Eoplectodonta (Eoplectodonta) duplicata | ||||||||||
| A1, B1 | ||||||||||
|
Anisopleurella gracilis
(Jones 1928)
|
9 specimens | |||||||||
| recombined as Kozlowskites gracilis | ||||||||||
| A7, B2 | ||||||||||
|
Strophomenata
- Strophomenida
- Leptestiidae
|
||||||||||
|
Leangella scissa
(Davidson 1871)
|
1 specimen | |||||||||
| B | ||||||||||
|
Strophomenata
- Strophomenida
- Aegiromenidae
|
||||||||||
|
Aegiria garthensis
Jones 1928
|
2 specimens | |||||||||
| A - originally entered as "Aegira garthensis" | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United Kingdom | State/province: | Wales | County: | Powys |
| Coordinates: | 52.2° North, 3.4° West (view map) | ||||
| Paleocoordinates: | 36.6° South, 16.8° West | ||||
| Basis of coordinate: | based on nearby landmark | ||||
| Geographic resolution: | small collection |
Time
| Period: | Silurian | Epoch: | Llandovery |
| Stage: | Rhuddanian | 10 m.y. bin: | Silurian 1 |
| *Period: | Early/Lower Silurian | *Epoch: | Early/Lower Llandovery |
| *International age/stage: | Late/Upper Rhuddanian | ||
| Key time interval: | Rhuddanian | Zone: | acinaces - cyphus |
| Age range of interval: | 443.80000 - 440.80000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Member: | shelly facies | ||||
| Local section: | Garth | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: No formation name. [Upper Rhuddanian assigned based on given graptolite zone.] | |||||
Lithology and environment
| Primary lithology: | lithified sandy siltstone |
| Environment: | marine indet. |
| Geology comments: "...consists of detrital sediments, but mainly mudstones and sandstones, and with a fauna predominantly of brachiopods." | |
Taphonomy
| Modes of preservation: | body |
Collection methods and comments
| Collection excludes: | some macrofossils |
| Collection methods: | bulk,field collection |
| Reason for describing collection: | taxonomic analysis |
| Collection method comments: Two "grabs" apparently, they differentiated them by thickness and mass: A = 5 mm, 3.2 kg; B = 12 mm, 6.0 kg. Differentiated in comment field. | |
| Taxonomic list comments:Brachiopods only. | |
Metadata
| Database number: | 3453 | ||
| Authorizer: | J. Alroy | Enterer: | M. Sommers |
| Modifier: | C. Visaggi | Research group: | marine invertebrate |
| Created: | 1999-08-02 14:28:48 | Last modified: | 2004-03-11 16:25:07 |
| Access level: | the public | Released: | 2000-11-20 13:53:19 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 196. | J. T. Temple. 1987. Early Llandovery brachiopods of Wales. Palaeontological Society Monographs 139(572):1-137 [J. Alroy/M. Sommers/M. Uhen] |