Rock Island (No. 1) Coal Maceration 950-A: Bashkirian - Gzhelian, Illinois

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Endosporites globiformis microspore
Raistrickia sp. microspore Potonié and Kremp 1954
Densosporites cf. lobatus microspore
Densosporites triangularis microspore
Sphenopsida
Calamospora sp. microspore Schopf et al.
unclassified
Florinites antiquus microspore
Florinites millotti microspore
Alatisporites trialatus microspore
Triquitrites exiguus microspore
Crassispora plicata microspore
Lycopsida
Lycospora granulata microspore
Lycospora punctata microspore
Polypodiopsida - Polypodiaceae
Laevigatosporites globosus microspore
Laevigatosporites medius microspore
Laevigatosporites ovalis microspore
unclassified
Wilsonites vesicatus microspore
Lycopodiopsida - Lycopodiales - Lycopodiaceae
Reticulatisporites lacunosus microspore
Reticulatisporites sp. microspore Ibrahim 1933
unclassified
Cyclogranisporites sp. microspore Potonié and Kremp 1954
see common names

Geography
Country:United States State/province:Illinois
Coordinates: 40.0° North, 88.0° West (view map)
Paleocoordinates:6.5° South, 24.3° West
Basis of coordinate:estimated from map
Geographic resolution:small collection
Time
Period: Carboniferous Epoch: Pennsylvanian
Stage: Bashkirian - Gzhelian 10 m.y. bin: Carboniferous 4 - Carboniferous 5
*Period:Late/Upper Carboniferous
Key time interval: Bashkirian - Gzhelian
Age range of interval: 323.2 - 298.9 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Geological group:Kewanee Formation:Spoon Member:No. 1 Coal
Regional section:Illinois Basin
Stratigraphic resolution:bed
Stratigraphy comments: An attempt was made, also, to determine the stratigraphic position of several coals, samples of which were recovered from diamond drill core sections in northeastern Illinois, that lie between the base of the Pennsylvanian and the Colchester (No. 2) Coal.
Lithology and environment
Primary lithology: coal
Environment:terrestrial indet.
Taphonomy
Modes of preservation:mold/impression,original carbon
Size of fossils:microfossils
Collection methods and comments
Collection methods:core,chemical,mechanical,field collection
Reason for describing collection:taxonomic analysis
Metadata
Database number:23514
Authorizer:H. Sims Enterer:H. Lindon, A. McGowan
Modifier:A. McGowan Research group:paleobotany
Created:2002-07-16 06:30:20 Last modified:2003-10-09 13:58:21
Access level:the public Released:2002-07-16 06:30:20
Creative Commons license:CC BY
Reference information

Primary reference:
6718. R. A. Peppers. 1970. Correlation and Palynology of Coals in the Carbondale and Spoon Formations (Pennsylvanian) of the Northeastern Part of the Illinois Basin. Illinois State Geological Survey Bulletin 93:1-174 [H. Sims/H. Lindon/J. Cassara]