Elmo (formerly Banner): Sakmarian - Kungurian, Kansas

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Eukaryota indet. marine palyn Chatton 1925
acritarchs
Equisetopsida - Sphenophyllales
Sphenophyllum obovatum
Peltaspermopsida - Peltaspermales - Peltaspermaceae
Callipteris cf. conferta (Sternberg 1833)
Sphenopteridae
Sphenopteris suessi leaf
Algae - Botryococcaceae
Botryococcus braunii marine palyn Kutzing 1849
alga
unclassified
Glenopteris sp. Sellards 1900
Glenopteris splendens Sellards 1900
Cycadopsida - Cycadales
Phasmatocycas kansana multi organs, seed/fruit Mamay 1973
axis, leaves
unclassified
Taeniopteris coriacea leaf Goeppert 1864
recombined as Spermopteris coriacea
Spermatophyta indet. seed/fruit
platyspermic seed
Pinopsida - Cordaitanthales
Cordaites sp. leaf Unger 1850
unclassified
Sandrewia texana seed repro Mamay 1975
see common names

Geography
Country:United States State/province:Kansas
Coordinates: 38.7° North, 97.2° West (view map)
Paleocoordinates:4.0° North, 25.7° West
Basis of coordinate:based on nearby landmark
Geographic resolution:outcrop
Time
Period:Permian Epoch:Cisuralian
*Period:Early/Lower Permian *Epoch:Rotliegendes
*International age/stage:Sakmarian - Kungurian *Local age/stage:Leonard
Key time interval:Sakmarian - Kungurian
Age range of interval:295.50000 - 272.30000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Geological group:Sumner Formation:Wellington Member:Elmo Limestone
Stratigraphic resolution:bed
Lithology and environment
Primary lithology:planar lamination,gray dolomite
Includes fossils?Y
Lithology description: The fossiliferous bed is a dolostone, about 10cm thick and grayish orange in color with lighter colored mottling. The matrix is extremely hard, with very fine algal laminations, and emits a faint bituminous odor when freshly split.
Environment:peritidal
Geology comments: The dolostone with algal laminations in which Phasmatocycas was found in Kansas was probably formed in a sabkha environment, which points to a very dry climate. (p. 113)
Taphonomy
Modes of preservation:cast,mold/impression,adpression,coalified
Size of fossils:macrofossils
Associated major elements:some
Spatial resolution:allochthonous
Collection methods and comments
Collection excludes:some microfossils
Collection methods:selective quarrying,surface (in situ),field collection
Reason for describing collection:taxonomic analysis
Museum repositories:USNM
Metadata
Database number:32659
Authorizer:H. Sims Enterer:A. McGowan, H. Pfefferkorn, J. Cassara
Modifier:A. McGowan Research group:paleobotany
Subset of collection #:11154
Created:2003-07-11 12:28:38 Last modified:2003-09-19 12:13:45
Access level:the public Released:2003-07-11 12:28:38
Creative Commons license:CC BY
Reference information

Primary reference:

8782. W. H. Gillespie and H. W. Pfefferkorn. 1986. Taeniopterid lamina on Phasmatocycas megasporophylls (Cycadales) from the Lower Permian of Kansas, U. S. A. Review of Palaeobotany and Palynology 49:99-116 [H. Sims/A. McGowan/H. Pfefferkorn]

Secondary references:

4100 S. H. Mamay. 1976. Paleozoic origin of the cycads. U.S. Geological Survey Professional Paper 934 [H. Sims/S. Ostrowski]