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Paleogeography of the Campanian Outcrops of the Cerro del Pueblo Formation at the type locality of Cerro del Pueblo, on the edge of Saltillo, Coahuila. The Cerro del Pueblo Formation is a geological formation in Coahuila, Mexico, whose strata date back to the latest Campanian of the Late Cretaceous, just before the Campanian-Maastrichtian boundary.
Rinderknecht, Andrés (2011), Estudio sobre los roedores gigantes del Uruguay, Departamento de San José (Mioceno tardío-Pliocene) y sus implicancias para la sistemática y taxonomía de la familia Dinomyidae (Mammalia, Rodentia) (PDF), Universidad de la República, pp. 1–101
Extent of the formation in the Ischigualasto-Villa Unión Basin. Los Colorados Formation is a unit with an approximate thickness of 600 metres (2,000 ft) of the Agua de la Peña Group in the Ischigualasto-Villa Unión Basin, where it is exposed in the Ischigualasto Provincial Park, a World Heritage Site in Argentina.
A soil scientist examining horizons within a soil profile. Soil science is the study of soil as a natural resource on the surface of the Earth including soil formation, classification and mapping; physical, chemical, biological, and fertility properties of soils; and these properties in relation to the use and management of soils.
The Permian through Jurassic strata of the Colorado Plateau area of southeastern Utah demonstrate the principles of stratigraphy.These strata make up much of the famous prominent rock formations in widely spaced protected areas such as Capitol Reef National Park and Canyonlands National Park.
The oldest true caviid, Prodolichotis pridiana is known from the Villavieja and La Victoria Formations of La Venta, Colombia. Sister taxa of these caviids first appeared in the Colloncuran; Guiomys unica and Microcardiodon williensis , found in the Collón Curá Formation. [ 15 ]
The Guaduas Formation consists mainly of shales with intercalated sandstone beds. The formation contains coalbeds that are widely explored in the area. [2] Fossil remains of Coussapoa camargoi, Ficus andrewsi, Berhamniphyllum sp. and Archaeopaliurus boyacensis have been found in coalbeds in Zipaquirá and Tasco, Boyacá.
The Dakota is a sedimentary geologic unit name of formation and group rank in Midwestern North America. The Dakota units are generally composed of sandstones, mudstones, clays, and shales deposited in the Mid-Cretaceous opening of the Western Interior Seaway. [7]