Chargin Shale, Bed 74 (top), Brandywine Falls: Late/Upper Famennian, Ohio

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Strophomenata - Productida - Araksalosiidae
Acanthatia sp. Muir-Wood and Cooper 1960
Rhynchonellata - Spiriferida - Cyrtospiriferidae
Cyrtospirifer sp. Nalivkin 1924
Rhynchonellata - Rhynchonellida - Trigonirhynchiidae
Centrorhynchus sp.
replaced by Sartenaerus
Rhynchonellata - Orthida - Rhipidomellidae
Aulacella sp.
Bivalvia - Pectinida - Pterinopectinidae
Pterinopecten sp. Hall 1883
Bivalvia - Ostreida - Pterineidae
Leptodesma sp. Hall 1883
see common names

Geography
Country:United States State/province:Ohio
Coordinates: 41.0° North, 82.0° West (view map)
Paleocoordinates:29.1° South, 30.3° West
Basis of coordinate:estimated from map
Geographic resolution:small collection
Time
Period:Devonian Epoch:Late/Upper Devonian
Stage:Famennian 10 m.y. bin:Devonian 5
Key time interval:Late/Upper Famennian
Age range of interval:365.30000 - 358.90000 m.y. ago
Stratigraphy
Formation:Chargin Shale
Stratigraphic resolution:formation
Stratigraphy comments: Listed as Late Famennian
Lithology and environment
Primary lithology:pyritic poorly lithified "shale"
Secondary lithology: lithified siltstone
Lithology description: Greenish-gray to bluish-gray shales with some pyrite interbedded with discontinuous siltstones
Environment:offshore shelf
Taphonomy
Modes of preservation:body
Degree of concentration:-single event
Size of fossils:macrofossils
Spatial orientation:life position
Articulated whole bodies:some
Size sorting:poor
Fragmentation:occasional
Encrustation:occasional
Temporal resolution:snapshot
Spatial resolution:autochthonous
Collection methods and comments
Reason for describing collection:biostratigraphic analysis
Collection method comments: Collection only includes brachiopods and bivalves, but text says brachiopods are "most abundant...with bivalves as a minor constituent of the total fauna" and formation is generally "sparsely fossiliferous"
Metadata
Database number:75046
Authorizer:P. Novack-Gottshall Enterer:P. Hearn
Modifier:P. Novack-Gottshall Research group:marine invertebrate
Created:2007-09-17 09:27:58 Last modified:2008-06-23 10:55:34
Access level:the public Released:2007-09-17 09:27:58
Creative Commons license:CC BY
Reference information

Primary reference:

25316. B. A. Schwimmer and R. M. Feldmann. 1990. Stratigraphic distribution of brachiopods and bivalves in the Upper Devonian (Famennian) Chagrin Shale in the Cuyahoga River Valley, Northeast Ohio. Kirtlandia 45:7-31 [P. Novack-Gottshall/P. Hearn/M. Uhen]