Stroud Claim: Hemphillian, Idaho
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Mammalia
- Rodentia
- Castoridae
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Dipoides stirtoni
Wilson 1934
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| confirmed by Hibbard 1970a | ||||||||||
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Mammalia
- Rodentia
- Cricetidae
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Microtoscoptes hibbardi
(Martin 1975)
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= Paramicrotoscoptes hibbardi
Martin 1975
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Repenning 1987 | |||||||||
| "M. disjunctus" of Malde and Powers, Hibbard 1970a, and Voorhies 1990 | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Idaho | County: | Gooding |
| Coordinates: | 43.0° North, 114.9° West (view map) | ||||
| Paleocoordinates: | 43.4° North, 113.2° West | ||||
| Basis of coordinate: | based on political unit |
Time
| Period: | Neogene | ||
| 10 m.y. bin: | Cenozoic 6 | ||
| *Period: | Tertiary | *Epoch: | Miocene |
| Key time interval: | Hemphillian | ||
| Age range of interval: | 9.40000 - 4.70000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Formation: | Hole-in-the-wall Diatomite | ||
| Local section: | Hgrmn | Local bed: | 100 ft |
| Local order: | bottom to top |
Lithology and environment
| Primary lithology: | not reported |
| Environment: | terrestrial indet. |
Taphonomy
| Modes of preservation: | body |
Collection methods and comments
| Reason for describing collection: | general faunal/floral analysis |
| Taxonomic list comments:apparently this is just east of the Clover Creek locality in the Glenns Ferry Fm. of Elmore Co. this part of the Snake River Plain was not investigated by Perkins et al. 1998 Evernden et al. 1964: sample KA 830 dated at 10.0 (= 10.27) Ma on an "associated" volcanic ash; this is dismissed by Repenning 1987 on biochronological grounds, and another sample from a nearby Mount Bennet Hills "Banbury" ash was dated at 13.5 (= 13.86) +/- 1.5 Ma by Armstrong et al. 1975, who considered both of these dates unreliable originally said to be from "a diatomite" in the middle part of the "Banbury Basalt" but this is not only different from the type Banbury but has nothing to do with the "Banbury Basalt" between the Poison Creek and Chalk Hills; Fms.: Armstrong et al. 1975 placed here at an arbitrary low level in the Hagerman section | |
Metadata
| Database number: | 19090 | ||
| Authorizer: | J. Alroy | Enterer: | J. Alroy |
| Modifier: | J. Alroy | Research group: | vertebrate |
| Created: | 1993-09-27 00:00:00 | Last modified: | 2009-12-18 12:20:32 |
| Access level: | the public | Released: | 1993-09-27 00:00:00 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 2401. | H. E. Malde and H. A. Powers. 1962. Upper Cenozoic Stratigraphy of Western Snake River Plain, Idaho. Geological Society America Bulletin 73 [J. Alroy/J. Alroy/J. Ju] |
Secondary references:
| 3849 | 5% 22480 | C. A. Repenning. 1987. Biochronology of the microtine rodents of the United States. M. O. Woodburne (ed.), Cenozoic mammals of North America 236-268 [J. Alroy/M. Sommers/J. Alroy] |