Ptilodictya lanceolata Community, Steinsfjorden Fm. at Langoya (Silurian of Norway)

Where: Norway (68.8° N, 15.0° E: paleocoordinates 12.2° S, 9.5° W)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Steinsfjorden Formation, Sheinwoodian (433.4 - 430.5 Ma)

• Middle part of formation with age probably near Sheinwoodian/Homerian transition.

• formation-level stratigraphic resolution

Environment/lithology: marine; hardground carbonate

• "..biota low, encrusting, with large holdfasts and flexible joints, or low domical to minimize resistance. Probably energy level high. Sediments above and below indicate shallow conditions near intertidal in BA 2."
• "...community developed on smooth carbonate hardgrounds."

Collection methods: Table 22.14 includes specimen counts.

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 14313: authorized by Michael Foote, entered by Michael Foote on 30.05.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

• Some taxa are not listed to the genus level.
Bryozoa
  -
Bryozoa indet. Ehrenberg 1831
bryozoan sp. E (encruster)
Bryozoa indet. Ehrenberg 1831
bryozoan sp. B
Stenolaemata
 Cryptostomata - Ptilodictyidae
Ptilodictya lanceolata Goldfuss 1829
Anthozoa
 Rugosa -
Rugosa indet. horn coral
solitary
 Favositida - Favositidae
Favosites forbesi tabulate coral
 Auloporida - Auloporidae
Aulopora sp. Goldfuss 1829 tabulate coral
sp. B
Aulopora repens Knorr and Walch 1775 tabulate coral