Protathyris Community of the Tonoloway Formation, Pendleton Co., West Virginia: Ludlow, West Virginia

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Rhynchonellata - Spiriferida - Delthyrididae
Delthyris sp. Dalman 1828
Rhynchonellata - Athyridida - Athyrididae
Protathyris congregata
Rhynchonellata - Rhynchonellida - Trigonirhynchiidae
Microsphaeridiorhynchus litchfieldensis (Schuchert 1903)
Strophomenata - Orthotetida - Schuchertellidae
Schuchertella sp. Girty 1904
genus name in quotes
see common names

Geography
Country:United States State/province:West Virginia
Coordinates: 38.7° North, 79.5° West (view map)
Paleocoordinates:32.5° South, 45.3° West
Basis of coordinate:based on nearby landmark
Geographic resolution:outcrop
Time
Period:Silurian Epoch:Ludlow
10 m.y. bin:Silurian 2
Key time interval:Ludlow
Age range of interval:427.40000 - 423.00000 m.y. ago
Stratigraphy
Formation:Tonoloway Member:middle
Stratigraphic resolution:member
Stratigraphy comments: Middle member of Tonoloway Formation. Tonoloway Formation (Limestone) is Late Ludlow to Pridoli according to USGS Lexicon (stratigraphic dating as of 1994). Age range of community is Wenlock to Ludlow.
Lithology and environment
Primary lithology: lime mudstone
Lithology description: In general description of this community, matrix said to be micritic.
Environment:lagoonal/restricted shallow subtidal Tectonic setting:forearc basin
Geology comments: "Geographic and stratigraphic relations with associated communities indicate BA 2. Conditions of articulation suggest quiet water."
SEP added: "occurrences in evaporitic situations...tend to implicate hypersaline conditions"
Taphonomy
Collection methods and comments
Reason for describing collection:paleoecologic analysis
Museum repositories:USNM
Collection method comments: Abundances stated in text.
Metadata
Database number:24890
Authorizer:M. Foote Enterer:M. Foote
Modifier:M. Foote Research group:marine invertebrate
Created:2002-08-22 08:53:09 Last modified:2006-09-15 15:14:05
Access level:the public Released:2002-08-22 08:53:09
Creative Commons license:CC BY
Reference information

Primary reference:
6948. A. J. Boucot. 1999. Some Wenlockian-Geddinian, chiefly brachiopod dominated communities of North America. In A. J. Boucot, J. D. Lawson (eds.), Paleocommunities--a case study from the Silurian and Lower Devonian 549-591 [M. Foote/M. Foote/P. Wagner]