15874-12SFI: Cenomanian, Kansas
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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unclassified
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Maexisporites soldanellus megaspore
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1-10 %-specimens | |||||||||
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Plantae indet.
Haeckel 1866
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1-10 %-specimens | |||||||||
| Spiny "fruit" | ||||||||||
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Striatriletes radialis megaspore
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10-25 %-specimens | |||||||||
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Spermatites piperiformis seed/fruit
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25-50 %-specimens | |||||||||
| seed, fruit, or miscellaneous fossil | ||||||||||
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Pteridopsida
- Marsileales
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Arcellites disciformis megaspore
Miner 1935
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1-10 %-specimens | |||||||||
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Polypodiopsida
- Marsileaceae
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Molaspora salinum n. sp. megaspore
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25-50 %-specimens | |||||||||
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Molaspora lobata megaspore
Hall and Peake 1968
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1-10 %-specimens | |||||||||
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unclassified
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Dictyothylakos sp.
Horst 1954
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| seed, fruit, or miscellaneous fossil | ||||||||||
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Lycopodiopsida
- Isoetales
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Minerisporites dissimilis megaspore
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1-10 %-specimens | |||||||||
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unclassified
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Paxillitriletes dakotaensis megaspore
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1-10 %-specimens | |||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Kansas | County: | Russell |
| Coordinates: | 38.9° North, 98.9° West (view map) | ||||
| Paleocoordinates: | 37.4° North, 61.5° West | ||||
| Basis of coordinate: | based on political unit | ||||
| Altitude: | 560 meters | ||||
| Geographic resolution: | outcrop |
Time
| Period: | Cretaceous | Epoch: | Late/Upper Cretaceous |
| Stage: | Cenomanian | 10 m.y. bin: | Cretaceous 5 |
| *Period: | Cretaceous - Cretaceous | *Epoch: | Late - Late |
| *International age/stage: | Cenomanian - Cenomanian | ||
| Key time interval: | Cenomanian | ||
| Age range of interval: | 100.50000 - 93.90000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Formation: | Dakota | ||||
| Stratigraphic resolution: | formation | ||||
| Stratigraphy comments: These fossils were recovered from the upper part of the Dakota Formation, Central Kansas, U.S.A. | |||||
Lithology and environment
| Primary lithology: | claystone |
| Lithology description: silty claystone | |
| Geology comments: The Dakota Formation is considered to be predominantly nonmarine, with the uppermost portions of the formation comprising marginal marine deposits, probably of deltaic origin, which were deposited during the transgression of the Cretaceous epicontinental sea. | |
Taphonomy
| Modes of preservation: | original sporopollenin |
| Size of fossils: | microfossils |
Collection methods and comments
| Collection methods: | surface (in situ),chemical,sieve,field collection |
| Collection size: | 323 specimens |
| Reason for describing collection: | taxonomic analysis |
Metadata
| Also known as: | IU Locality 15874, Sample 12 at SFI, Russell Co., KS (Dakota Formation) | ||
| Database number: | 32684 | ||
| Authorizer: | R. Lupia | Enterer: | T. Naeher |
| Modifier: | T. Naeher | Research group: | paleobotany |
| Created: | 2003-07-12 14:12:26 | Last modified: | 2003-07-23 13:59:42 |
| Access level: | the public | Released: | 2003-07-12 14:12:26 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 8778. | W. L. Kovach and D. L. Dilcher. 1988. Megaspores and other dispersed plant remains from the Dakota Formation (Cenomanian) of Kansas, U.S.A. Palynology 12:89-119 [R. Lupia/T. Naeher/T. Naeher] |