Road cut on U. S. Highway 77, 2.5 miles north of Springer: Chatfieldian, Oklahoma
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Trilobita
- Trinucleida
- Trinucleidae
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Cryptolithoides ulrichi
Whittington 1941
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Trilobita
- Asaphida
- Asaphidae
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Asaphidae indet.
Burmeister 1843
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Trilobita
- Asaphida
- Remopleurididae
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Robergia deckeri
Cooper 1953
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| recombined as Pugilator deckeri | |||||||
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Hypodicranotus sp.
Whittington 1952
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Agnostida
- Metagnostidae
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Trinodus sp.
M'Coy 1846
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Pterobranchia
- Graptoloidea
- Glossograptidae
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Cryptograptus sp.
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Pterobranchia
- Graptoloidea
- Diplograptidae
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Orthograptus sp.
Lapworth 1873
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Pterobranchia
- Graptoloidea
- Climacograptidae
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Climacograptus aff. typicalis
Hall 1865
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Pterobranchia
- Graptoloidea
- Dicranograptidae
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Dicranograptus sp.
(Hall 1865)
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| original and current combination Climacograptus (Dicranograptus) | |||||||
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Dicellograptus sp.
Hopkinson 1871
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Pterobranchia
- Graptoloidea
- Lasiograptidae
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Orthoretiolites hami n. gen., n. sp.
Whittington 1954
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| see common names | |||||||
Geography
| Country: | United States | State/province: | Oklahoma | County: | Carter |
| Coordinates: | 36.3° North, 97.1° West (view map) | ||||
| Paleocoordinates: | 21.0° South, 71.8° West | ||||
| Geographic resolution: | outcrop |
Time
| Period: | Ordovician | Epoch: | Late/Upper Ordovician |
| 10 m.y. bin: | Ordovician 4-5 | ||
| Key time interval: | Chatfieldian | ||
| Age range of interval: | 453.70000 - 451.10000 m.y. ago |
Stratigraphy
| Formation: | Viola Springs | Member: | Unit 1 | ||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: Unit 1. Stratigraphy based on Amati & Westrop 2006. Given as Trentonian, pre Sherman Falls. | |||||
Lithology and environment
| Primary lithology: | planar lamination,gray cherty/siliceous mudstone |
| Lithology description: Siliceous laminated mudstone, light-gray, planar-bedded; chert in layers. | |
| Environment: | offshore indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | field collection |
| Reason for describing collection: | biostratigraphic analysis |
| Museum repositories: | MCZ |
Metadata
| Database number: | 197140 | ||
| Authorizer: | P. Wagner | Enterer: | P. Wagner | Research group: | marine invertebrate |
| Created: | 2018-10-23 12:26:55 | Last modified: | 2018-10-23 12:26:55 |
| Access level: | the public | Released: | 2018-10-23 12:26:55 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 67179. | H. B. Whittington. 1954. A new Ordovician graptolite from Oklahoma. Journal of Paleontology 28(5):613-621 [P. Wagner/P. Wagner] |