Oldest nowakiid site, Limehill Beds, Pomeroy Co.: Llandovery, United Kingdom
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Rhynchonellata
- Atrypida
|
||||||||||
|
Atrypida indet.
Rzhonsnitskaya 1960
|
||||||||||
| small atrypoid brach | ||||||||||
|
Bivalvia
- Myalinida
- Ambonychiidae
|
||||||||||
|
Mytilarca sp.
Hall and Whitfield 1869
|
||||||||||
|
unclassified
|
||||||||||
|
Pteroida indet.
|
||||||||||
| lunulacardiid | ||||||||||
|
Cephalopoda
- Orthocerida
|
||||||||||
|
Aptychopsis sp.
Barrande 1872
|
||||||||||
|
Cephalopoda
|
||||||||||
|
Nautiloidea indet.
Agassiz 1847
|
||||||||||
| orthoconic nautiloid | ||||||||||
|
Tentaculita
- Nowakiida
- Peneauiidae
|
||||||||||
|
? Guerichina sp.
Boucek and Prantl 1961
|
||||||||||
| equals Karadjalia?? - originally entered as "? Guerichia sp." | ||||||||||
|
Tentaculita
- Nowakiida
- Nowakiidae
|
||||||||||
|
Nowakia sp.
Gurich 1896
|
||||||||||
|
Pterobranchia
|
||||||||||
|
Graptolithina indet.
Bronn 1849
|
||||||||||
| 5 species, monograptids | ||||||||||
|
Pterobranchia
- Graptoloidea
- Climacograptidae
|
||||||||||
|
Climacograptus sp.
Hall 1865
|
||||||||||
|
Pterobranchia
- Graptoloidea
- Retiolitidae
|
||||||||||
|
Petalograptus sp.
|
||||||||||
| see common names | ||||||||||
Geography
| Country: | United Kingdom | State/province: | Northern Ireland | County: | Tyrone |
| Coordinates: | 54.6° North, 6.9° West (view map) | ||||
| Paleocoordinates: | 16.7° South, 23.6° West | ||||
| Basis of coordinate: | based on nearby landmark | ||||
| Geographic resolution: | outcrop |
Time
| Period: | Silurian | Epoch: | Llandovery |
| 10 m.y. bin: | Silurian 1 | *Local age/stage: | Fronian |
| Key time interval: | Llandovery | ||
| Age range of interval: | 443.8 - 433.4 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Formation: | Lime Hill Beds |
| Stratigraphic resolution: | formation |
Lithology and environment
| Primary lithology: | gray siltstone |
| Environment: | marine indet. |
| Geology comments: "fine black mudstone with paler gray somewhat siltier beds. deepwater, quiet" | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | taxonomic analysis |
| Taxonomic list comments:"S.P. Tunnicliff, 1983. The oldest known nowakiid (Tentaculoidea). Paleo 26:851-854" | |
Metadata
| Database number: | 496 | ||
| Authorizer: | J. Sepkoski | Enterer: | M. Sommers |
| Modifier: | P. Wagner | Research group: | marine invertebrate |
| Created: | 1998-12-17 15:03:28 | Last modified: | 2018-07-09 23:32:42 |
| Access level: | the public | Released: | 1998-12-17 15:03:28 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 61176. | S. P. Tunnicliff. 1983. The oldest known nowakiid (Tentaculoidea). Palaeontology 26:851-854 [M. Uhen/J. Ju] |