USGS M1180, divide between Congress and Big Canyons: Bithynian, Nevada
collected by N.J. Silberling 1958
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Cephalopoda
- Ceratitida
- Acrochordiceratidae
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Acrochordiceras hyatti
Meek 1877
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12 specimens | ||||||
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Cephalopoda
- Ceratitida
- Danubitidae
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Pseudodanubites halli
(Mojsisovics 1896)
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7 specimens | ||||||
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Cephalopoda
- Ceratitida
- Khvalynitidae
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Koipatoceras discoideus n. gen., n. sp.
Silberling and Nichols 1982
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1 specimen | ||||||
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Cephalopoda
- Ceratitida
- Gymnitidae
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Gymnites perplanus
(Meek 1877)
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2 specimens | ||||||
| see common names | |||||||
Geography
| Country: | United States | State/province: | Nevada |
| Coordinates: | 40.5° North, 118.1° West (view map) | ||
| Paleocoordinates: | 11.1° North, 41.7° West | ||
| Basis of coordinate: | based on nearby landmark | ||
| Geographic resolution: | small collection |
Time
| Period: | Triassic | Epoch: | Middle Triassic |
| Stage: | Anisian | 10 m.y. bin: | Triassic 2 |
| Key time interval: | Bithynian | Ammonoid zone: | hyatti |
| Age range of interval: | 245.5 - 244.7 m.y. ago |
Stratigraphy
| Formation: | Prida | Member: | Fossil Hill |
| Stratigraphic resolution: | group of beds |
Lithology and environment
| Primary lithology: | lithified "limestone" |
| Secondary lithology: | lithified siltstone |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | taxonomic analysis | ||
| Museum repositories: | USNM | ||
| Collectors: | N.J. Silberling | Collection dates: | 1958 |
Metadata
| Database number: | 143259 | ||
| Authorizer: | M. Clapham | Enterer: | M. Clapham |
| Modifier: | M. Clapham | Research group: | marine invertebrate |
| Created: | 2013-04-22 10:16:08 | Last modified: | 2013-11-25 13:02:06 |
| Access level: | the public | Released: | 2013-04-22 10:16:08 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 10526. | N. J. Silberling and K. M. Nichols. 1982. Middle Triassic Molluscan Fossils of Biostratigraphic Significance from the Humboldt Range, Northwestern Nevada. Geological Survey Professional Paper 1207 [A. McGowan/A. McGowan/A. McGowan] |