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Ogallala - Valentine - Crookston Bridge, Nebraska, USA
| Group | Ogallala |
|---|---|
| Formation | Valentine |
| Member | Crookston Bridge |
| Age: | 16.0 - 13.6 Ma Miocene |
| Interval | Barstovian |
| Lithology | conglomerate/sandstone |
| Number of Collections | 7 |
| Number of Occurrences | 76 |
Recorded Sample Locations
| Location | Region | Stratigraphic Name |
|---|---|---|
| Annie's Geese Crossing Quarry | Knox County, Nebraska, USA | Ogallala - Valentine - Crookston Bridge |
| Above Lost Chance | Brown County, Nebraska, USA | Ogallala - Valentine - Crookston Bridge |
| Head of Bear Creek | Cherry County, Nebraska, USA | Ogallala - Valentine - Crookston Bridge |
| Middlebranch | Knox County, Nebraska, USA | Ogallala - Valentine - Crookston Bridge |
Associated Units
| Stratigraphic Name | Age | Lithology | Occurrence Records |
|---|---|---|---|
| Ash Hollow | 10.3 - 4.90 Ma Neogene | siliciclastic | 231 |
| Ash Hollow - Cap Rock | 13.6 - 4.90 Ma Neogene | claystone, ash, sandstone | 279 |
| Ash Hollow - Merritt Dam | 13.6 - 10.3 Ma Miocene | siliciclastic | 378 |
| Harrison | 24.8 - 20.4 Ma Cenozoic | sandstone | 160 |
| Long Pine | 3.60 - 0.78 Ma Cenozoic | siltstone | 65 |
| Runningwater | 20.4 - 16.0 Ma Miocene | sandstone, sandstone/conglomerate | 315 |
| Valentine - Burge | 13.6 - 10.3 Ma Miocene | 242 | |
| Valentine - Crookston Bridge | 16.0 - 13.6 Ma Miocene | 204 | |
| Valentine - Devil's Gulch | 16.0 - 13.6 Ma Miocene | 7 | |
| Arikaree - Harrison | 23.0 - 5.33 Ma Miocene | 32 | |
| Ogallala | 10.3 - 4.90 Ma Neogene | sandstone, mudstone | 101 |
| Ogallala - Ash Hollow | 10.3 - 4.90 Ma Neogene | 54 | |
| Ogallala - Ash Hollow - Merritt Dam | 13.6 - 10.3 Ma Miocene | sandstone | 58 |
| Ogallala - Valentine | 11.6 - 2.59 Ma Cenozoic | claystone | 79 |
| Ogallala - Valentine - Burge | 13.6 - 10.3 Ma Miocene | 21 | |
| Ogallala - Valentine - Cornell Dam | 16.0 - 13.6 Ma Miocene | sandstone | 308 |
| Ogallala - Valentine - Devil's Gulch | 16.0 - 10.3 Ma Miocene | sandstone | 151 |
Recorded Fossils
References
Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, various licences, iDigBio, various licences, and EOL: The Encyclopedia of Life (Open Data Public Domain). Because fossils are made of minerals too!
