User:Abyssal/Portal:Neogene

The Neogene Portal Introduction Selected article on the Neogene world and its legacies Kolob Canyons from the end of Kolob Canyons Road. The geology of the Zion and Kolob canyons area includes nine known exposed formations, all visible in Zion National Park in the U.S. state of Utah. Together, these formations represent about 150 million years of local sedimentation from the Late Permian to Early Cretaceous. Part of a super-sequence of rock units called the Grand Staircase, the formations exposed in the Zion and Kolob area were deposited in several different environments that range from the warm shallow seas of the Kaibab and Moenkopi formations, streams and lakes of the Chinle, Moenave, and Kayenta formations to the large deserts of the Navajo and Temple Cap formations and dry near shore environments of the Carmel Formation. Subsequent uplift of the Colorado Plateau slowly raised these formations much higher than where they were deposited. This steepened the stream gradient of the ancestral rivers and other streams on the plateau. The faster-moving streams took advantage of uplift-created joints in the rocks to remove all Cenozoic-aged formations and cut gorges into the plateaus. Zion Canyon was cut by the North Fork of the Virgin River in this way. Lava flows and cinder cones covered parts of the area during the later part of this process. (see more...) Did you know? Life restoration of Australodelphis. ... that the extinct Pliocene dolphin Australodelphis from the Vestfold Hills of Antarctica has been described as an example of convergent evolution with whales? ... that, being a descendant of Pliohippus, Astrohippus is not considered to be an ancestor to modern horses? ... that the oldest association between Trypanosoma, which causes Chagas disease, and its vector, the assassin bug Triatoma, is found in Triatoma dominicana and Trypanosoma antiquus? ... that the extinct Neocorynura electra, found in Dominican amber, is the only known species of Neocorynura "sweat bee" from the Greater Antilles? ... that the extinct Crocodylus thorbjarnarsoni from the Pliocene and Pleistocene of Kenya was the largest true crocodile and may have eaten early human ancestors? Need help? Do you have a question about Abyssal/Portal:Neogene that you can't find the answer to? Consider asking it at the Wikipedia reference desk. Selected image The painting Laelaps by Charles R. Knight depicts two Dryptosaurus fighting. Photo credit: User:Durova Selected article on the Neogene in human science, culture and economics Photograph of Charles Darwin. Charles Darwin (12 February 1809 – 19 April 1882) was an English naturalist and geologist, best known for his contributions to evolutionary theory. He established that all species of life have descended over time from common ancestors, and in a joint publication with Alfred Russel Wallace introduced his scientific theorythat this branching pattern of evolution resulted from a process that he called natural selection, in which the struggle for existence has a similar effect to the artificial selection involved in selective breeding. His five-year voyage onHMS Beagle established him as an eminent geologist whose observations and theories supported Charles Lyell'suniformitarian ideas. Darwin later published his theory of evolution with compelling evidence in his 1859 book On the Origin of Species, overcoming scientific rejection of earlier concepts of transmutation of species. By the 1870s the scientific community and much of the general public had accepted evolution as a fact. However, many favoured competing explanations and it was not until the emergence of the modern evolutionary synthesis from the 1930s to the 1950s that a broad consensus developed in which natural selection was the basic mechanism of evolution. In modified form, Darwin's scientific discovery is the unifying theory of the life sciences, explaining the diversity of life. In recognition of Darwin's pre-eminence as a scientist, he was honoured with a major ceremonial funeral and buried in Westminster Abbey, close to John Herschel and Isaac Newton. Darwin has been described as one of the most influential figures in human history. (see more...) Topics Geochronology - Neogene (Miocene - Pliocene) Neogene landmasses - Major Neogene events - Neogene biota appearances - Fossil sites - Stratigraphic units - History - History of paleontology - Timeline of paleontology Researchers - Culture - Treatise on Invertebrate Paleontology - Vertebrate Paleontology Subcategories Neogene Neogene by continent Neogene geochronology Neogene events Neogene geology Neogene life Neogene paleogeography Neogene stubs Quality Content Featured Neogene articles - None yet Good Neogene articles - Nonet yet Things you can do Here are some tasks awaiting attention: Stubs : Neogene stubs WikiProjects Earth science Geology Paleontology Related content Time Earth sciences Paleontology Extinct and Endangered Species Paleozoic Mesozoic Cenozoic Paleogene Quaternary Associated Wikimedia The following Wikimedia Foundation sister projects provide more on this subject: Commons Free media repository Wikibooks Free textbooks and manuals Wikidata Free knowledge base Wikinews Free-content news Wikiquote Collection of quotations Wikisource Free-content library Wikiversity Free learning tools Wiktionary Dictionary and thesaurus ¤ Category:Cenozoic portals Category:Geologic time portals