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It preserves fossils dating to the Miocene epoch of the Neogene period and is particularly noted for Canid fossils. [2] [3] This unit consists of loosely-consolidated sandstone that crumbles easily. These sands carry the water of the Ogallala Aquifer and is the source of much of the water in the Niobrara River. [1]
Jurassic Coast – World Heritage Site on the coast of southern England; Lagerstätte – Sedimentary deposit with well-preserved extraordinary fossils; Lists of dinosaur-bearing stratigraphic units; List of fossil parks around the world – Following is a list of protected areas where fossils are preserved, known as fossil parks
The presence of bodies of flowing water like rivers or streams is recorded in the terrestrial sediments of the Catahoula Formation. Fossils from this ancient environment are rare, but include petrified wood. [11] During the Miocene epoch of the ensuing Neogene period west-central Louisiana held a coastal plain.
The Miocene (/ ˈ m aɪ. ə s iː n,-oʊ-/ MY-ə-seen, -oh-) [6] [7] is the first geological epoch of the Neogene Period and extends from about (Ma). The Miocene was named by Scottish geologist Charles Lyell; the name comes from the Greek words μείων (meíōn, "less") and καινός (kainós, "new") [8] [9] and means "less recent" because it has 18% fewer modern marine invertebrates ...
Re-exposed during the Quaternary, [4] these cherty materials, known as Smoky Hill Jasper and Smoky Hill silicified chalk, or more recently as Niobrara Jasper or Niobrarite, became source material for stone tools from the earliest human habitation of the High Plains. [5] [6] In some regions, the Niobrara is a commercial hydrocarbon reservoir.
It preserves fossils dating back to the Neogene period. These include the Socorro flora, notable for its fine preservation of plant reproductive structures. These include the Socorro flora, notable for its fine preservation of plant reproductive structures.
The fossil history of flowering plants records the development of flowers and other distinctive structures of the angiosperms, now the dominant group of plants on land.The history is controversial as flowering plants appear in great diversity in the Cretaceous, with scanty and debatable records before that, creating a puzzle for evolutionary biologists that Charles Darwin named an "abominable ...
The assemblage is rich in fossil seeds, fruit nuts, and associated woods, and is one of the few places in the world where all three are preserved in a single location. [26] The flora included cinnamon, cycads, palms, the primitive sycamore Platanophyllum angustilobus, walnuts, magnolias, figs, grapes, coffee trees, cashews, and bananas. [2]