Gerronodictyon incisum Community, Pavdin Stage, Urals (Silurian of Russian Federation)

Where: Russian Federation (59.0° N, 62.0° E: paleocoordinates 2.2° S, 10.9° E)

• coordinate based on political unit

• basin-level geographic resolution

When: Wenlock (433.4 - 427.4 Ma)

• Pavdin Regional Stage, Lower and Middle Wenlockian

Environment/lithology: marine; siltstone

• "The stromatoporoids occur in lenses, and show some evidence of at least local movement. Assigned to BA 3."
• "...confined to the silty bottom, rough water Megalomus Banks. " [Under Megalomus gothlandicus Community appears this description: commonly black, argillaceous, shelly limestone, which is uncommonly sandy...with cement (argillaceous matrix) making up 40-50% of the rock..]

Primary reference: V. P. Sapelnikov, O. V. Bogoyavlenskaya, L. I. Mizens and V. P. Shuysky. 1999. Silurian and Early Devonian benthic communities of the Ural-Tien Shan region. In A. J. Boucot and J. D. Lawson (eds.), Paleocommunities--a case study from the Silurian and Lower Devonian 510-544 [M. Foote/M. Foote/M. Foote]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 23697: authorized by Michael Foote, entered by Michael Foote on 18.07.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

• The stromatoporoid-dominated communities are often associated with other faunal elements, but the lists given emphasize the dominant stromatoporoids.
Stromatoporoidea
 Clathrodictyida - Actinodictyidae
Ecclimadictyon robustum stromatoporoid sponge
Ecclimadictyon nikiforovae stromatoporoid sponge
Ecclimadictyon explanatum stromatoporoid sponge
 Clathrodictyida - Gerronostromatidae
Gerronodictyon incisum stromatoporoid sponge
 Actinostromatida - Pseudolabechiidae
Pseudolabechia pavdensis stromatoporoid sponge
 Stromatoporellida - Stromatoporellidae
Simplexodictyon kyssuniense stromatoporoid sponge
Simplexodictyon perperum stromatoporoid sponge