I-846: Cassinian, Oklahoma
collected by J. D. Loch
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Trilobita
- Proetida
- Dimeropygidae
|
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Ischyrotoma informal sp. 1
Raymond 1925
|
1 individual | |||||||||
| 1 cranidium | ||||||||||
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Trilobita
- Proetida
- Bathyuridae
|
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|
Bolbocephalus sp.
Whitfield 1890
|
1 individual | |||||||||
| 1 cranidium, 1 librigena | ||||||||||
|
Trilobita
- Asaphida
- Asaphidae
|
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|
Isoteloides peri
Fortey 1979
|
1 individual | |||||||||
| 1 cranidium, 1 librigena | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Oklahoma | County: | Carter |
| Coordinates: | 34.4° North, 97.1° West (view map) | ||||
| Paleocoordinates: | 21.4° South, 82.1° West | ||||
| Basis of coordinate: | estimated from map | ||||
| Geographic resolution: | outcrop |
Time
| Period: | Ordovician | Epoch: | Early/Lower Ordovician |
| 10 m.y. bin: | Ordovician 1-2 | ||
| Key time interval: | Cassinian | Trilobite zone: | Petigurus cullisoni |
| Age range of interval: | 482.00000 - 470.00000 m.y. ago |
Stratigraphy
| Formation: | Kindblade | ||
| Local section: | Interstate-35 | Local bed: | 846 ft |
| Local order: | bottom to top | ||
| Stratigraphic resolution: | bed |
Lithology and environment
| Primary lithology: | lithified lime mudstone |
| Secondary lithology: | intraclastic lithified wackestone |
| Lithology description: Within unit 4, described as "Thin- to medium-bedded lime mudstone with abundant stromatolites. Sparse skeletal grainstones and lime mudstones with dolomitic laminations. Moderately fossiliferous." | |
| Environment: | shallow subtidal indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection excludes: | some macrofossils |
| Collection methods: | bulk,field collection |
| Reason for describing collection: | biostratigraphic analysis |
| Collectors: | J. D. Loch |
Metadata
| Database number: | 106764 | ||
| Authorizer: | M. Hopkins | Enterer: | M. Hopkins |
| Modifier: | M. Hopkins | Research group: | marine invertebrate |
| Created: | 2011-03-29 08:57:34 | Last modified: | 2011-07-26 17:33:44 |
| Access level: | the public | Released: | 2011-03-29 08:57:34 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 35642. | J. D. Loch. 2007. Trilobite biostratigraphy and correlation of the Kindblade Formation (Lower Ordovician) of Carter and Kiowa Counties, Oklahoma. Oklahoma Geological Survey Bulletin 149:1-154 [M. Hopkins/M. Hopkins] |