| Winnemucca Formation | |
|---|---|
| Stratigraphic range: Triassic period | |
| Type | Geologic formation |
| Location | |
| Region | Northwestern Nevada |
| Country | United States |
| Type section | |
| Named for | Chief Winnemucca (Paiute leader) |
The Winnemucca Formation is a Triassic period geologic formation in northwestern Nevada, USA. It is found in the Sonoma Range in Humboldt County. [1]
It preserves fossils dating back to the Triassic period of the Mesozoic Era.
Redondasaurus is an extinct genus of phytosaur from the Late Triassic of the southwestern United States. It was named by Hunt & Lucas in 1993, and contains two species, R. gregorii and R. bermani. It is the youngest and most evolutionarily-advanced of the phytosaurs.
The Sonoma orogeny was a period of mountain building in western North America. The exact age and structure of the Sonoma orogeny is controversial. The orogeny is generally thought to have occurred during the Permian / Triassic transition, around 250 million years ago, following the Late Devonian Antler orogeny. The Sonoma orogeny was one of a sequence of accretionary events along the Cordilleran margin, possibly caused by the closure of the basin between the island arc of Sonomia and the North American continent. Evidence of this event has been reported throughout western North America, but most distinctly in northwest Nevada.
The Colorado City Formation is a geologic formation in Texas, United States. It preserves fossils dating back to the Triassic period.
The Jelm Formation is a geologic formation in Wyoming. It preserves fossils dating back to the Triassic period.
The Ely Springs Dolomite is an Ordovician period geologic formation in the Southwestern United States.
The Virgin Formation is a geologic formation in Utah. It preserves fossils dating back to the Triassic period.
The Osobb Formation is a geologic formation in Nevada. It preserves fossils dating back to the Triassic period.
The Prida Formation is a geologic formation in Nevada. It preserves fossils dating back to the Triassic period.
The Priada Formation is a geologic formation in Nevada. It preserves fossils dating back to the Triassic period.
The Augusta Mountain Formation is a geologic formation in Nevada. It preserves fossils dating back to the Triassic period.
The Dun Glen Formation is a geologic formation in Nevada. It preserves fossils dating back to the Triassic period.
The Excelsior Formation is a geologic formation in Nevada. It preserves fossils dating back to the Triassic period.
The Grantsville Formation is a geologic formation in Nevada. It preserves fossils dating back to the Triassic period.
The Hoyt Canyon Formation is a geologic formation in Nevada. It preserves fossils dating back to the Triassic period.
The Luning Formation is a geologic formation in Nevada. It preserves fossils dating back to the Triassic period.
The Quatsino Limestone is a geologic formation in British Columbia. It preserves fossils dating back to the Triassic period.
The Wordie Creek Formation is a geologic formation in Greenland. The Triassic Sediments from the region were first discovered in 1926 and preserve fossils dating back to the Triassic period. The temnospondyl Selenocara is from this formation.
The Raibl Formation is an Upper Triassic geologic formation in the Northern and Southern Limestone mountain ranges of the Eastern Alps, in Central Europe.
The bedrock of Colorado was assembled from island arcs accreted onto the edge of the ancient Wyoming Craton. The Sonoma orogeny uplifted the ancestral Rocky Mountains in parallel with the diversification of multicellular life. Shallow seas covered the regions, followed by the uplift current Rocky Mountains and intense volcanic activity. Colorado has thick sedimentary sequences with oil, gas and coal deposits, as well as base metals and other minerals.
The Golconda Thrust is a major oceanic terrane that was thrust over central and northern Nevada, North America, in possibly sometime between the Late Permian and the late Jurassic. It is considered equivalent to the Tobin thrust fault.
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