I-486: Jeffersonian, Oklahoma
collected by J. D. Loch
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Trilobita
- Proetida
- Bathyuridae
|
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Punka akoura
Loch 2007
|
1 individual | |||||||||
| 1 pygidium | ||||||||||
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Benthamaspis rhochmotis
Loch 2007
|
4 individuals | |||||||||
| 4 cranidia, 2 librigena | ||||||||||
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Lutesvillia bispinosa
Cullison 1944
|
1 individual | |||||||||
| 1 pygidium | ||||||||||
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Gelasinocephalus pustulosus
Loch 2007
|
1 individual | |||||||||
| 1 librigena | ||||||||||
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? Jeffersonia ulrichi
Loch 2007
|
1 individual | |||||||||
| 1 cranidium | ||||||||||
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Trilobita
- Proetida
- Dimeropygidae
|
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Ischyrotoma sila
Loch 2007
|
1 individual | |||||||||
| 1 librigena | ||||||||||
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Trilobita
- Asaphida
- Asaphidae
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? Isoteloides informal sp. 1
Raymond 1910
|
1 individual | |||||||||
| 1 hypostome | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Oklahoma | County: | Carter |
| Coordinates: | 34.4° North, 97.1° West (view map) | ||||
| Paleocoordinates: | 20.9° South, 84.1° 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: | Jeffersonian | Trilobite zone: | Benthamaspis rhochmotis |
| Age range of interval: | 485.40000 - 470.00000 m.y. ago |
Stratigraphy
| Formation: | Kindblade | ||
| Local section: | Interstate-35 | Local bed: | 486 ft |
| Local order: | bottom to top | ||
| Stratigraphic resolution: | bed |
Lithology and environment
| Primary lithology: | massive,bioturbation lime mudstone |
| Secondary lithology: | shelly/skeletal grainstone |
| Lithology description: Within unit 1, described as "Resistant, thick-bedded lime mudstones, massive to bioturbated. Alternate with thin- to medium-bedded skeletal lime grainstones and intraclastic lime wackestones to packstones that erode into recesses...Common sponge-algal bioherms and common stromatolites [at various intervals]." | |
| Environment: | reef, buildup or bioherm |
| Geology comments: See also Toomey and Nitecki, 1979. | |
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: | 106612 | ||
| Authorizer: | M. Hopkins | Enterer: | M. Hopkins | Research group: | marine invertebrate |
| Created: | 2011-03-26 07:55:16 | Last modified: | 2011-03-25 15:55:16 |
| Access level: | the public | Released: | 2011-03-26 07:55:16 |
| 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] |