Gerronostroma concentricum Community, Bobrov Stage, E. Urals (Silurian of Russian Federation)

Also known as Reef 3735

Where: Russian Federation (60.2° N, 60.0° E: paleocoordinates 3.8° N, 8.5° E)

• coordinate based on political unit

• basin-level geographic resolution

When: Pridoli (423.0 - 419.2 Ma)

• Bobrov Regional Stage, Pridolian

Environment/lithology: reef, buildup or bioherm; limestone

• "The unit is intimately associated laterally with, and perhaps partly in a vertical direction, with the Atrypoidea prunum gigas Comm., and is considered to be a quiet water, BA 2 unit."
• "Occurs on a siltstone (limestone and micrite) substrate as massive colonies aggregated into biostromes. Subcylindrical and columnal coeonstea occur betw. massive ones."

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 23719: authorized by Michael Foote, entered by Michael Foote on 19.07.2002

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.
Show authors, comments, and common names
Stromatoporoidea
 Stromatoporida - Syringostromellidae
Syringostromella subcylindrica, Syringostromella brevis
Syringostromella subcylindrica stromatoporoid sponge
Syringostromella brevis stromatoporoid sponge
 Clathrodictyida - Gerronostromatidae
Gerronostroma concentricum, Gerronostroma magnificum
Gerronostroma concentricum stromatoporoid sponge
Gerronostroma magnificum stromatoporoid sponge
 Amphiporida - Amphiporidae
Stellopora grandessa, Stellopora vasta, Stellopora rara, Stellopora raritatis, Clathrodictyella turkestanica, Clathrodictyella magna, Clathrodictyella retroata, Clathrodictyella mica
Stellopora grandessa stromatoporoid sponge
Stellopora vasta stromatoporoid sponge
Stellopora rara stromatoporoid sponge
Stellopora raritatis stromatoporoid sponge
Clathrodictyella turkestanica stromatoporoid sponge
Clathrodictyella magna stromatoporoid sponge
Clathrodictyella retroata stromatoporoid sponge
Clathrodictyella mica stromatoporoid sponge
 Actinostromatida - Densastromatidae
Densastroma podolicum
Densastroma podolicum stromatoporoid sponge