USGS M958, Saurian Hill: Illyrian, Nevada
collected by N.J. Silberling 1960
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Cephalopoda
- Pseudorthocerida
- Trematoceratidae
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? Michelinoceras cf. campanile
(Mojsisovics 1869)
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1 specimen | ||||||
| synonym of Trematoceras elegans | |||||||
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Cephalopoda
- Aulacoceratida
- Xiphoteuthididae
|
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Atractites nevadensis
(Meek 1877)
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1 specimen | ||||||
| recombined as Calliconites nevadensis | |||||||
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Cephalopoda
- Ceratitida
- Ceratitidae
|
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Parafrechites meeki
(Mojsisovics 1888)
|
100 specimens | ||||||
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Eutomoceras dunni
Smith 1904
|
3 specimens | ||||||
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Cephalopoda
- Ceratitida
- Aplococeratidae
|
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Aplococeras vogdesi
(Hyatt and Smith 1905)
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16 specimens | ||||||
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Cephalopoda
- Ceratitida
- Proteusitidae
|
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Tozerites gemmellaroi
(Arthaber 1911)
|
6 specimens | ||||||
| see common names | |||||||
Geography
| Country: | United States | State/province: | Nevada |
| Coordinates: | 40.3° North, 118.1° West (view map) | ||
| Paleocoordinates: | 11.2° North, 42.4° West | ||
| Basis of coordinate: | estimated from map | ||
| Geographic resolution: | outcrop |
Time
| Period: | Triassic | Epoch: | Middle Triassic |
| Stage: | Anisian | 10 m.y. bin: | Triassic 2 |
| Key time interval: | Illyrian | Ammonoid zone: | meeki |
| Age range of interval: | 243.80000 - 242.00000 m.y. ago |
Stratigraphy
| Geological group: | Star Peak | Formation: | Prida | Member: | Fossil Hill |
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: 3 feet above M957 | |||||
Lithology and environment
| Primary lithology: | lithified "limestone" |
| Environment: | carbonate indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | surface (in situ) | ||
| Reason for describing collection: | taxonomic analysis | ||
| Museum repositories: | USNM | ||
| Collectors: | N.J. Silberling | Collection dates: | 1960 |
Metadata
| Database number: | 143217 | ||
| Authorizer: | M. Clapham | Enterer: | M. Clapham | Research group: | marine invertebrate |
| Created: | 2013-04-20 13:48:39 | Last modified: | 2013-11-25 13:02:06 |
| Access level: | the public | Released: | 2013-04-20 13:48:39 |
| 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] |