Leangella scissa-Marklandella markesi Comm., Leangen Mbr., Solvik Fm., Asker Dis: Aeronian, Norway
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
unclassified
|
||||||||||
|
? Paleoleptostrophia ? ostrina
|
||||||||||
|
Chlorophyceae
- Dasycladales
- Dasycladaceae
|
||||||||||
|
Cyclocrinites sp.
Stolley 1898
|
||||||||||
|
Anthozoa
- Rugosa
|
||||||||||
|
Rugosa indet.
Milne-Edwards and Haime 1850
|
||||||||||
|
Scyphozoa
- Conulariida
|
||||||||||
|
Conulariida indet.
Miller and Gurley 1896
|
||||||||||
|
Pterobranchia
|
||||||||||
|
Graptolithina indet.
Bronn 1849
|
||||||||||
|
Gastropoda
|
||||||||||
|
Gastropoda indet.
Cuvier 1795
|
||||||||||
|
Tentaculitida
- Tentaculitidae
|
||||||||||
|
Tentaculites sp.
von Schlotheim 1820
|
||||||||||
| genus name in quotes | ||||||||||
|
Strophomenata
- Strophomenida
- Aegiromenidae
|
||||||||||
|
Aegirea norvegica
(Opik 1933)
|
||||||||||
| misspelling Aegiria norvegica | ||||||||||
|
Strophomenata
- Strophomenida
- Leptestiidae
|
||||||||||
|
Leangella scissa
(Davidson 1871)
|
||||||||||
|
Strophomenata
- Strophomenida
- Sowerbyellidae
|
||||||||||
|
Eoplectodonta duplicata
(de Sowerby and Murchison 1839)
|
||||||||||
| recombined as Eoplectodonta (Eoplectodonta) duplicata | ||||||||||
|
Strophomenata
- Strophomenida
- Eopholidostrophiidae
|
||||||||||
|
Eopholidostrophia cocksi
(Hurst 1974)
|
||||||||||
| original and current combination Pholidostrophia (Eopholidostrophia) cocksi | ||||||||||
|
Strophomenata
- Strophomenida
- Furcitellidae
|
||||||||||
|
Katastrophomena penkillensis
(Reed 1917)
|
||||||||||
|
Strophomenata
- Strophomenida
- Leptostrophiidae
|
||||||||||
|
Eostropheodonta delicata
Baarli 1995
|
||||||||||
|
Strophomenata
- Orthotetida
- Chilidiopsidae
|
||||||||||
|
Fardenia oblectator
Baarli 1995
|
||||||||||
|
Rhynchonellata
- Pentamerida
- Stricklandiidae
|
||||||||||
|
Stricklandia lens
(Sowerby 1839)
|
||||||||||
|
Rhynchonellata
- Orthida
- Platyorthidae
|
||||||||||
|
Marklandella markesi
Baarli 1988
|
||||||||||
|
Rhynchonellata
- Orthida
- Dalmanellidae
|
||||||||||
|
Isorthis prima
(Walmsley and Boucot 1975)
|
||||||||||
| synonym of Levenea llandoveriana | ||||||||||
|
Rhynchonellata
- Atrypida
|
||||||||||
|
Protatrypa malmoeyensis
Boucot et al. 1964
|
||||||||||
|
Rhynchonellata
- Rhynchonellida
- Trigonirhynchiidae
|
||||||||||
|
? Rostricellula sp.
Ulrich and Cooper 1942
|
||||||||||
|
unclassified
|
||||||||||
|
Bryozoa indet.
Ehrenberg 1831
|
||||||||||
| Ramose bryozoans | ||||||||||
|
Bryozoa indet.
Ehrenberg 1831
|
||||||||||
| Massive bryozoans | ||||||||||
|
Trilobita
|
||||||||||
|
Trilobita indet.
Walch 1771
|
||||||||||
|
Trilobita
- Proetida
- Proetidae
|
||||||||||
|
Cyphoproetus sp.
Kegel 1927
|
||||||||||
|
Trilobita
- Phacopida
- Calymenidae
|
||||||||||
|
Calymene sp.
Brongniart 1822
|
||||||||||
|
Trilobita
- Odontopleurida
- Odontopleuridae
|
||||||||||
|
Leonaspis cf. varbolensis
Bruton 1967
|
||||||||||
| recombined as Exallaspis varbolensis | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Norway |
| Coordinates: | 59.9° North, 10.8° East (view map) |
| Paleocoordinates: | 25.7° South, 8.8° West |
| Basis of coordinate: | based on nearby landmark |
| Geographic resolution: | local area |
Time
| Period: | Silurian | Epoch: | Llandovery |
| Stage: | Aeronian | 10 m.y. bin: | Silurian 1 |
| *International age/stage: | Middle Aeronian | ||
| Key time interval: | Aeronian | ||
| Age range of interval: | 440.80000 - 438.50000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
Lithology and environment
| Primary lithology: | hummocky CS,pyritic "shale" |
| Secondary lithology: | sandstone |
| Includes fossils? | Y |
| Lithology description: "...occurs in thick mainly dark, very fissile shale beds, interlayered with thin to thick, fine sandstone beds." | |
| Environment: | marine indet. |
| Geology comments: "...Hummocky cross bedding, which only is created in teh transition zone or shallower waters, occurs and proximality analysis shows it ws deposited above storm wave base just above the lower limits of the transition zone...The BA position is 4, wtih a soft bottom indicated. The bottom was commonly reworked by storms...The dark shale is rick in organic material and much visible pyrite, and contains shells that are sometimes partly dissolved. This might mean that the bottom sediments, if not the bottom waters, were anoxic to dysaerobic at times." | |
Taphonomy
Collection methods and comments
| Collection excludes: | some macrofossils |
| Reason for describing collection: | paleoecologic analysis |
| Collection method comments: Substantial overlap with PBDB collections 506 and 13847, but this list contains additional taxa. Collection based on Table 22.9, which includes data from six collections. Table includes relative and absolute abundance data. | |
| Taxonomic list comments:Not all taxa listed to genus level. | |
Metadata
| Database number: | 14303 | ||
| Authorizer: | M. Foote | Enterer: | M. Foote |
| Modifier: | M. Foote | Research group: | marine invertebrate |
| Collections that are a subset of this one: | |||
| Created: | 2002-05-30 13:29:59 | Last modified: | 2006-09-15 15:14:05 |
| Access level: | the public | Released: | 2002-05-30 13:29:59 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 6308. | B. G. Baarli, H. B. Keilen, and M. E. Johnson. 1999. Silurian communities of the Oslo Region, Norway. In A. J. Boucot and J. D. Lawson (eds.), Paleocommunities--a case study from the Silurian and Lower Devonian 327-349 [M. Foote/M. Foote/P. Wagner] |