Glossia obovata community, section 1E15: Elton, United Kingdom
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
unclassified
|
|||||||
|
Pteriacean indet.
|
|||||||
|
Grammysid indet.
|
|||||||
|
Gastropoda
- Murchisoniina
- Loxonematidae
|
|||||||
|
Loxonema sinuosa
(de Sowerby and Murchison 1839)
|
|||||||
|
Cephalopoda
- Orthocerida
- Orthoceratidae
|
|||||||
|
Orthoceras dimidiatum
|
|||||||
|
Orthoceras gregarium
|
|||||||
|
Cephalopoda
- Oncocerida
|
|||||||
|
"Cyrtoceras" laevis
|
|||||||
|
Bivalvia
- Modiomorphida
- Modiomorphidae
|
|||||||
|
Butovicella migrans
(Barrande 1881)
|
|||||||
|
Bivalvia
- Myalinida
- Ambonychiidae
|
|||||||
|
Mytilarca siluriana
|
|||||||
|
Bivalvia
- Cyrtodontida
- Antipleuridae
|
|||||||
|
Dualina striata
|
|||||||
|
Bivalvia
- Nuculida
- Praenuculidae
|
|||||||
|
Praenucula sp.
Pfab 1934
|
|||||||
|
Rhynchonellata
- Orthida
- Dalmanellidae
|
|||||||
|
Isorthis clivosa
|
|||||||
|
Rhynchonellata
- Athyridida
- Dayiidae
|
|||||||
|
Protozeuga sp.
Twenhofel 1914
|
|||||||
|
Rhynchonellata
- Rhynchonellida
- Camarotoechiidae
|
|||||||
|
Plagiorhyncha sp.
McLearn 1918
|
|||||||
|
Strophomenata
- Strophomenida
- Leptodontellidae
|
|||||||
|
Parastrophonella sp.
|
|||||||
|
Strophomenata
- Strophomenida
- Strophochonetidae
|
|||||||
|
Protochonetes minimus
(Sowerby 1839)
|
|||||||
|
Strophomenata
- Strophomenida
- Aegiromenidae
|
|||||||
|
Aegiria grayi
(Davidson 1849)
|
|||||||
|
Craniata
- Craniopsida
- Craniopsidae
|
|||||||
|
Craniops implicata
|
|||||||
|
Trilobita
- Phacopida
- Dalmanitidae
|
|||||||
|
Dalmanites myops
|
|||||||
|
Trilobita
- Odontopleurida
- Odontopleuridae
|
|||||||
|
Leonaspis coronata
(Salter 1853)
|
|||||||
| see common names | |||||||
Geography
| Country: | United Kingdom | State/province: | Wales |
| Coordinates: | 52.0° North, 4.0° West (view map) | ||
| Paleocoordinates: | 25.2° South, 12.8° West | ||
| Basis of coordinate: | estimated from map | ||
| Geographic resolution: | small collection |
Time
| Period: | Silurian | Epoch: | Pridoli |
| 10 m.y. bin: | Silurian 2 | ||
| Key time interval: | Elton | ||
| Age range of interval: | 423 - 421.3 m.y. ago |
Stratigraphy
| Formation: | Middle Elton | ||||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: Glossia obovata community. Listed as Eltonian; Mudstone facies | |||||
Lithology and environment
| Primary lithology: | bioturbation lithified argillaceous mudstone |
| Secondary lithology: | lithified siltstone |
| Lithology description: Uniform, bioturbated, clay-rich mudstone with very rare (<1%) laminated silt beds | |
| Environment: | offshore shelf |
| Geology comments: Approximately 50% clay, 0% 1-2% shells, sand, lacking sedimentary structures. "Very low energy, distal shelf" | |
Taphonomy
| Modes of preservation: | body |
| Degree of concentration: | -multiple events |
| Size of fossils: | macrofossils,mesofossils |
| Spatial orientation: | life position |
| Size sorting: | poor |
| Fragmentation: | none |
| Temporal resolution: | time-averaged |
| Spatial resolution: | autochthonous |
Collection methods and comments
| Reason for describing collection: | paleoecologic analysis |
| Collection method comments: 210 and table 17: Two samples with smallest thickness selected; 1E13 is 5 cm thick, 421 cm above base of section | |
Metadata
| Database number: | 75052 | ||
| Authorizer: | P. Novack-Gottshall | Enterer: | P. Hearn |
| Modifier: | P. Wagner | Research group: | marine invertebrate |
| Created: | 2007-09-17 13:45:52 | Last modified: | 2018-06-25 23:44:47 |
| Access level: | the public | Released: | 2007-09-17 13:45:52 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 25317. | R. Watkins. 1979. Benthic community organization in the Ludlow Series of the Welsh Borderland. Bulletin of the British Museum of Natural History (Geology) 31:175-280 [P. Novack-Gottshall/P. Hearn/J. Ju] |