Reveroides-Trimerella Community, Central Urals: Llandovery - Wenlock, Russian Federation

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Rhynchonellata - Pentamerida - Pentameridae
Reveroides jolvensis
Reveroides reverus
Craniata - Trimerellida - Trimerellidae
Trimerella sp. Billings 1862
see common names

Geography
Country:Russian Federation
Coordinates: 59.2° North, 60.5° East (view map)
Paleocoordinates:6.5° South, 10.9° East
Basis of coordinate:based on political unit
Geographic resolution:local area
Time
Period:Silurian
*Epoch:Late/Upper Llandovery - Early/Lower Wenlock
*Local age/stage:Early/Lower Semenov
Key time interval:Llandovery - Wenlock
Age range of interval:443.80000 - 427.40000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Stratigraphy comments: Probably Late Llandoverian or Early Wenlockian. Lowermost part of Semenov Regional Stage, underlying Jolvia multiplexa community.
Lithology and environment
Primary lithology:ferruginous "limestone"
Includes fossils?Y
Lithology description: "Occurs in massive, tough, ferruginous limestone in the lowermost part of the Semenov Regional Stage"
Environment:marine indet.
Geology comments: Lithology and morphology of shells (pedicle; heavy ventral valves) suggest level bottom conditions, whereas ration of articulated to disarticulated shells suggests quiet water. BA 3. Elsewhere related Pentameridae and Trimerella commonly found in rough water.
Taphonomy
Collection methods and comments
Reason for describing collection:paleoecologic analysis
Metadata
Database number:23755
Authorizer:M. Foote Enterer:M. Foote
Modifier:M. Foote Research group:marine invertebrate
Created:2002-07-19 11:42:27 Last modified:2006-09-15 15:14:05
Access level:the public Released:2002-07-19 11:42:27
Creative Commons license:CC BY
Reference information

Primary reference:

6753. 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]