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Location Stratigraphic position Abundance Notes Images cf. Campylognathoides: Indeterminate Winterton Falciferum Zone NHMUK PV R 36712, Humerus [6] A pterosaur: Gyrosteus: G. mirabilis: Whitby Multiple partial skeletons [7] A large chondrosteid acipenseriform fish Hauffiosaurus: H. longirostris: Whitby-Saltwick Falciferum Zone MCZ 1033, a ...
Siltstone is an unusual rock, in which most of the silt grains are made of quartz. [11] The origin of quartz silt has been a topic of much research and debate. [ 12 ] [ 13 ] Some quartz silt likely has its origin in fine-grained foliated metamorphic rock, [ 14 ] while much marine silt is likely biogenic, [ 15 ] [ 16 ] but most quartz sediments ...
The Hamilton Group is a Devonian-age geological group which is located in the Appalachian region of the United States.It is present in New York, Pennsylvania, Maryland, Ohio, West Virginia, northwestern Virginia and Ontario, Canada, [1] [2] and is mainly composed of marine shale with some sandstone.
It contains numerous rhythmic sequences of mudstone, limestone, siltstone and sandstone of which there are 25 and 38 in the constituent lower and upper formations respectively. A conglomerate occurs at the base of the lower formation.
USA TODAY Sports. Blue Jackets, Blackhawks fans sing happy birthday to late Johnny Gaudreau's son. Weather. Weather. AccuWeather. Springlike temperatures to spread across the nation early week.
At its type area north of Ouray, Colorado, the Cutler Formation consists of over 1,000 feet (300 m) of bright red sandstone, siltstone, and conglomerate beds alternating with reddish mudstone or clay-rich limestone. [3] Further west, the unit shows great lithological diversity, and can be divided into easily recognizable mappable subunits.
In a statement provided to USA TODAY on Wednesday evening, Forever 21's operating company, F21 OpCo, said, "Forever 21’s operating company, which is the brand licensee in the U.S., continues to ...
Stock market today: Dow slides 450 points, S&P 500 retreats from record as Walmart gives cautious outlook. Yahoo Finance. Fed's Musalem urges caution before 'any further adjustments' in rates.