Hannold Hill Formation
The Hannold Hill Formation is an Early Eocene (Wasatchian) geologic unit in the western United States.Hannold Hill Formation at .org It preserves the fossilized remains of the ray '' Myliobatis
''Myliobatis'' is a genus of eagle rays in the family Myliobatidae.
Description
''Myliobatis'' species can reach a width up to about . Their bodies consist of a rhomboidal disc, wider than long, with one dorsal fin. The head is broad and short, ... ' ...
[...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
|
Wasatchian
The Wasatchian North American Stage on the geologic timescale is the North American faunal stage according to the North American Land Mammal Ages chronology (NALMA), typically set from 55,400,000 to 50,300,000 years BP lasting . It is usually considered to be within the Eocene, more specifically the Early Eocene. The Wasatchian is preceded by the Clarkforkian and followed by the Bridgerian NALMA stages. Definition The age is named after the Wasatch Formation, a highly fossiliferous stratigraphic unit stretching across six of the United States from Idaho and Montana in the north through Utah and Wyoming to Colorado and New Mexico ) , population_demonym = New Mexican ( es, Neomexicano, Neomejicano, Nuevo Mexicano) , seat = Santa Fe, New Mexico, Santa Fe , LargestCity = Albuquerque, New Mexico, Albuquerque , LargestMetro = Albuquerque metropolitan area, Tiguex , Offi ... in the south. Substages The Wasatchian is considered to contain the following substages: * S ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
|
Wasatch Formation
The Wasatch Formation (Tw)Shroba & Scott, 2001, p.3 is an extensive highly fossiliferous geologic formation stretching across several basins in Idaho, Montana Wyoming, Utah and western Colorado.Wasatch Formation at .org It preserves dating back to the period. The formation de ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
|
Nanjemoy Formation
The Nanjemoy Formation is a geologic formation pertaining to both the Wilcox Group and the Pamunkey Group of the eastern United States, stretching across the states of Virginia, Maryland, and District of Columbia. The formation crops out east of the Appalachians and dates back to the Paleogene period. Specifically to the Ypresian stage of the Eocene epoch, about 55 to 50 Ma or Wasatchian in the NALMA classification, defined by the contemporaneous Wasatch Formation of the Pacific US coast. The about thin formation crops out in a narrow irregular band and only in certain of the many creeks of the Maryland peninsula and on the southern side of the Potomac River in Virginia. The two members the formation was divided into by Clark and Martin in 1901; Potapaco and Woodstock, represent different phases in the basin history. The lower Potapaco Member is much more clayey, described as marl, than the upper Woodstock Member, probably characteristic of less storm influences in the shal ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
|
Margaret Formation
The Margaret Formation is a geologic formation of the Eureka Sound Group in the Sverdrup Basin in Northwest Territories and Nunavut, Canada. The unit belonging to the Eureka Sound Group which crops out at Ellesmere Island preserves fossils dating back to the Early Eocene period, or Wasatchian in the NALMA classification.Margaret Formation at .org The Margaret Formation comprises s, sandy [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
|
Kamloops Group
Kamloops ( ) is a city in south-central British Columbia, Canada, at the confluence of the South flowing North Thompson River and the West flowing Thompson River, east of Kamloops Lake. It is located in the Thompson-Nicola Regional District, whose district offices are based here. The surrounding region is sometimes referred to as the Thompson Country. The city was incorporated in 1893 with about 500 residents. The Canadian Pacific Railroad was completed through downtown in 1886, and the Canadian National arrived in 1912, making Kamloops an important transportation hub. With a 2021 population of 97,902, it is the twelfth largest municipality in the province. The Kamloops census agglomeration is ranked 36th among census metropolitan areas and agglomerations in Canada with a 2021 population of 114,142. Kamloops is promoted as the ''Tournament Capital of Canada''. It hosts more than 100 sporting tournaments each year (hockey, baseball, curling, etc) at world-class sports faci ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
|
Allenby Formation
The Allenby formation is a sedimentary rock formation in British Columbia which was deposited during the Ypresian stage of the Early Eocene. It consists of conglomerates, sandstones with interbedded shales and coal. The shales contain an abundance of insect, fish and plant fossils known from 1877 and onward, while the Princeton Chert was first indented in the 1950's and is known from anatomically preserved plants. There are several notable fossil producing localities in the Princeton & Tulameen basins. Historical collection sites included Nine Mile Creek, Vermilian Bluffs, and Whipsaw Creek, while modern sites include One Mile Creek, Pleasant Valley, Thomas Ranch, and the Princeton Chert. Extent and correlation The Allenby is estimated to have an overall extent of approximately , though actual outcroppings of the formation make up less than 1% of the formation, while other exploratory contact is via boreholes and mines. The half-graben which contains the formation is separ ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
|
Coldwater Beds
The Coldwater Beds are a geologic formation of the Okanagan Highlands in British Columbia, Canada. They preserve fossils dating back to the Ypresian stage of the Eocene period, or Wasatchian in the NALMA classification.Coldwater Beds at .org The formation comprises mudstones, s and s deposited in a [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
|
Golden Valley Formation
The Golden Valley Formation is a stratigraphic unit of Late Paleocene to Early Eocene age in the Williston Basin of North Dakota.Hickey, 1977 It is present in western North Dakota and was named for the city of Golden Valley by W.E. Benson and W.M. Laird in 1947.Benson, W.E. and Liard, W.M. 1947. Eocene of North Dakota. Geological Society of America Bulletin, vol. 60, pp. 1166–1167. It preserves significant assemblages of fossil plants and vertebrates,Jepsen, G.L. 1963. Eocene vertebrates, coprolites, and plants in the Golden Valley Formation of western North Dakota. Geological Society of America Bulletin, vol. 74, pp. 673–684. as well as mollusk and insect fossils. Stratigraphy The Golden Valley Formation is present as a series of outliers in western North Dakota. It is underlain by the Sentinel Butte Formation and unconformably overlain by the White River Group. It reaches thicknesses of up to and is subdivided into two members: the ''Bear Den Member'' (lower) and the ''Cam ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
|
Willwood Formation
The Willwood Formation is a sedimentary sequence deposited during the late Paleocene to early Eocene, or Clarkforkian, Wasatchian and Bridgerian in the NALMA classification.Willwood Formation at .orgNeasham & Vondra, 1972 Description It consists of fine grained clastic rocks ( and ) interbedded with medium grained clastic rocks ([...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
|
Tatman Formation
The Tatman Formation is a Wasatchian geologic formation in Wyoming. It preserves fossils dating back to the Ypresian stage of the Eocene period.Tatman Formation at .org Fossil content The following fossils have been recovered from the formation:Wing et al., 1995Flora * '' Allantoidiopsis erosa'' * '' Cercidiphyllum genetrix'' * ''[...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
|
Pass Peak Formation
The Pass Peak Formation is a Wasatchian geologic formation in Wyoming. It preserves fossils dating back to the Ypresian stage of the Eocene period.Pass Peak Formation at .org Fossil content The following fossils have been found in the formation:Dorr Jr., 1978Mammals ;Artiodactyls * '' Diacodexis sp.'' ;Erinaceomorpha * '' Diacodon celatus'' ;Glires * ''[...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |