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