North side of Trapper Creek, Melrose: Griesbachian, Montana
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Rhynchonellata
- Terebratulida
- Dielasmatidae
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Terebratula margaritowi
(Bittner 1899)
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| recombined as Bittnerithyris margaritovi | ||||||||||
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Cephalopoda
- Ceratitida
- Ophiceratidae
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Ophiceras (Discophiceras) subkyokticum
(Spath 1930)
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| "bed 1B.5" | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Montana |
| Coordinates: | 45.6° North, 112.9° West (view map) | ||
| Paleocoordinates: | 16.2° North, 33.8° West | ||
| Basis of coordinate: | based on nearby landmark | ||
| Geographic resolution: | outcrop |
Time
| Period: | Triassic | Epoch: | Early/Lower Triassic |
| 10 m.y. bin: | Triassic 1 | ||
| Key time interval: | Griesbachian | ||
| Age range of interval: | 251.90200 - 251.40000 m.y. ago |
Stratigraphy
| Formation: | Dinwoody |
| Stratigraphic resolution: | group of beds |
Lithology and environment
| Primary lithology: | not reported |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | body,mold/impression |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | biostratigraphic analysis |
Metadata
| Database number: | 203172 | ||
| Authorizer: | A. Dunhill | Enterer: | B. Allen |
| Modifier: | B. Allen | ||
| Created: | 2019-08-05 09:18:54 | Last modified: | 2019-08-05 10:16:40 |
| Access level: | the public | Released: | 2019-08-05 09:18:54 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 69681. | N. D. Newell and B. Kummel. 1942. Lower Eo-Triassic stratigraphy, Western Wyoming and Southeast Idaho. Bulletin of the Geological Society of America 53:937-996 [A. Dunhill/B. Allen] |