Locality 5, Hillyard's Canyon, Zone "H", middle: Blackhillsian, Idaho
collected by R. J. Ross, Jr. 1946-1947
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Trilobita
- Asaphida
- Asaphidae
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Trigonocerca typica
Ross 1951
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see common names |
Geography
Country: | United States | State/province: | Idaho | County: | Franklin |
Coordinates: | 42.1° North, 111.6° West (view map) | ||||
Paleocoordinates: | 7.9° South, 79.5° West | ||||
Basis of coordinate: | estimated from map | ||||
Geographic resolution: | outcrop |
Time
Period: | Ordovician | Epoch: | Early/Lower Ordovician |
Stage: | Floian | 10 m.y. bin: | Ordovician 2 |
Key time interval: | Blackhillsian | Trilobite zone: | Trigonocerca typica |
Age range of interval: | 473.90000 - 470.00000 m.y. ago |
Stratigraphy
Formation: | Garden City | ||||
Stratigraphic resolution: | group of beds | ||||
Stratigraphy comments: 3 foot interval beginning 973 feet above base of formation. Occurs in uppermost part of Lower Member. Collection made in middle of biozone "H" at this locality. |
Lithology and environment
Primary lithology: | lithified muddy "limestone" |
Lithology description: "Slabby, muddy limestone." | |
Environment: | shallow subtidal indet. |
Taphonomy
Modes of preservation: | body |
Size of fossils: | macrofossils |
Collection methods and comments
Reason for describing collection: | biostratigraphic analysis | ||
Museum repositories: | YPM | ||
Collectors: | R. J. Ross, Jr. | Collection dates: | 1946-1947 |
Metadata
Database number: | 103797 | ||
Authorizer: | M. Hopkins | Enterer: | M. Hopkins |
Modifier: | P. Wagner | Research group: | marine invertebrate |
Created: | 2011-02-02 09:02:24 | Last modified: | 2012-08-25 21:19:28 |
Access level: | the public | Released: | 2011-02-02 09:02:24 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
25414. | R. J., J.r. Ross. 1951. Stratigraphy of the Garden City Formation in northeastern Utah, and its trilobite faunas. Yale Peabody Museum of Natural History Bulletin 6:1-161 [S. Finnegan/S. Finnegan/P. Wagner] |