Sunrise Formation

Sunrise Formation Stratigraphic range: Hettangian-Sinemurian ~201–191 Ma PreꞒ Ꞓ O S D C P T J K Pg N
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°W / 38.5; -118.1Coordinates: 38°30′N 118°06′W / 38.5°N 118.1°W / 38.5; -118.1
Approximate paleocoordinates	19°30′N 56°12′W / 19.5°N 56.2°W / 19.5; -56.2
Region	Nevada
Country	United States
Extent	Gabbs Valley Range
Sunrise Formation (the United States) Show map of the United States Sunrise Formation (Nevada) Show map of Nevada

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[]

• List of fossiliferous stratigraphic units in Nevada
• Paleontology in Nevada

References[]

Bibliography[]

• Taylor, D., and J. Guex. 2021. 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.
• Taylor, D., and J. Guex. 2002. The Triassic/Jurassic System boundary in the John Day Inlier, east-central Oregon. 64. 3-28.
• Taylor, D.G. 1998. Late Hettangian-early Sinemurian (Jurassic) ammonite biochronology of the western Cordillera, United States. Geobios 31. 467-497.
• Guex, J. 1995. Ammonites hettangiennes de la Gabbs Valley Range (Nevada, USA). 27. 1-131.
• Poulton, T. P. 1979. Jurassic Trigoniid Bivalves from Canada and Western United States of America. Geological Survey of Canada Bulletin 282. ..
• Jesionek-Szymanska, W. 1970. On a new pygasterid (Echinoidea) from the Jurassic (middle Lias) of Nevada, U.S.A.. Acta Palaeontologica Polonica 15. 411-419.