Leangella scissa-Dicoelosia osloensis Community, Leangen Mbr., Solvik Fm., Asker (Silurian to of Norway)

Where: Norway (59.9° N, 10.8° E: paleocoordinates 26.2° S, 8.8° W)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Leangen Member (Solvik Formation), Rhuddanian to Rhuddanian (443.4 - 438.5 Ma)

• Lower 15 m of section.

• member-level stratigraphic resolution

Environment/lithology: marine; pyritic shale

• "...below storm wave base...bracketed by Dicoelosia osloensis-Rhinopora malmoeensis Comm., indicating same BA 5 position as this Comm. ... High pyrite content and coalified organic remains (black smears and unidentifiable flakes) make indicate a low oxygen, restrictive environment."
• "...found below storm wave base in very shaly strata."

Collection methods: Substantial overlap with PBDB collections 505 and 13846, but this list contains additional taxa. Collection based on Table 22.8, which includes data from four collections. Table includes relative and absolute abundance data.

Primary reference: 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]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 14301: authorized by Michael Foote, entered by Michael Foote on 30.05.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

• Not all taxa listed to genus level.
Anthozoa
 Rugosa -
Rugosa indet. horn coral
 Heliolitida - Heliolitidae
Heliolitidae indet. Lindström 1876 tabulate coral
 Favositida - Favositidae
Favositidae indet. Dana 1846 tabulate coral
Lophophorata
 Tentaculitida - Tentaculitidae
Tentaculites sp. von Schlotheim 1820
genus name in quotes
Bryozoa
  -
Bryozoa indet. Ehrenberg 1831
Ramose bryozoans
Bryozoa indet. Ehrenberg 1831
Globular bryozoans
Stenolaemata
 Fenestrata -
Fenestrata indet. Elias and Condra 1957
 Cryptostomata - Rhinoporidae
Rhynchonellata
 Athyridida - Meristellidae
"Cryptothyrella sp." = Hindella
"Cryptothyrella sp." = Hindella Davidson 1882
 Pentamerida - Stricklandiidae
Stricklandia lens Sowerby 1839
 Orthida - Dicoelosiidae
 Orthida - Dalmanellidae
"Isorthis prima" = Levenea llandoveriana
"Isorthis prima" = Levenea llandoveriana Williams 1951
 Protorthida - Skenidiidae
 Atrypida - Lissatrypidae
 Atrypida - Atrypidae
 Atrypida - Cyclospiridae
? Cyclospira sp. Hall and Clarke 1893
 Atrypida -
Protatrypa malmoeyensis Boucot et al. 1964
Strophomenata
 Strophomenida - Leptostrophiidae
 Strophomenida - Furcitellidae
 Strophomenida - Rafinesquinidae
"Leptaena haverfordensis" = Leptaena (Leptaena) haverfordensis
"Leptaena haverfordensis" = Leptaena (Leptaena) haverfordensis Bancroft 1949
 Strophomenida - Sowerbyellidae
"Eoplectodonta duplicata" = Eoplectodonta (Eoplectodonta) duplicata
"Eoplectodonta duplicata" = Eoplectodonta (Eoplectodonta) duplicata de Sowerby and Murchison 1839
 Strophomenida - Leptestiidae
Leangella scissa Davidson 1871
Trilobita
  -
Trilobita indet. Walch 1771 trilobite