Sunrise Formation
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Sunrise Formation | |
---|---|
Stratigraphic range: Hettangian-Sinemurian ~ | |
Type | Formation |
Sub-units | Ferguson Hill & New York Canyon members |
Overlies | Gabbs Formation |
Lithology | |
Primary | Limestone |
Other | Shale, siltstone, sandstone |
Location | |
Coordinates | 38°30′N 118°06′W / 38.5°N 118.1°WCoordinates: 38°30′N 118°06′W / 38.5°N 118.1°W |
Approximate paleocoordinates | 19°30′N 56°12′W / 19.5°N 56.2°W |
Region | Nevada |
Country | ![]() |
Extent | Gabbs Valley Range |
The Sunrise Formation is a geologic formation in Nevada. It preserves fossils dating back to the Hettangian to Sinemurian stages of the Early Jurassic period.[1]
Fossil content
Among others, the following fossils have been reported from the formation:
- Ammonites
- Bivalves
- Echinoids
See also
References
Bibliography
- Early Sinemurian ammonoids and biochronology of the Sunrise Formation, New York Canyon, Mineral County, Nevada. New Mexico Museum of Natural History and Science Bulletin 82. 371–391. , and . 2021.
- Oregon Geology 64. 3-28. , and . 2002. The Triassic/Jurassic System boundary in the John Day Inlier, east-central Oregon.
- Geobios 31. 467-497. . 1998. Late Hettangian-early Sinemurian (Jurassic) ammonite biochronology of the western Cordillera, United States.
- Mémoires de Géologie (Lausanne) 27. 1-131. . 1995. Ammonites hettangiennes de la Gabbs Valley Range (Nevada, USA).
- Geological Survey of Canada Bulletin 282. .. . 1979. Jurassic Trigoniid Bivalves from Canada and Western United States of America.
- Acta Palaeontologica Polonica 15. 411-419. . 1970. On a new pygasterid (Echinoidea) from the Jurassic (middle Lias) of Nevada, U.S.A..
Categories:
- Coordinates not on Wikidata
- Jurassic geology of Nevada
- Jurassic System of North America
- Hettangian Stage
- Sinemurian Stage
- Limestone formations of the United States
- Sandstone formations of the United States
- Shale formations of the United States
- Siltstone formations
- Shallow marine deposits
- Paleontology in Nevada