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The Rupes Nigra ("Black Rock"), a phantom island, was believed to be a black rock located at the Magnetic North Pole or at the geographic North Pole itself. Described by Gerardus Mercator as 33 French miles in size, it provided a supposed explanation for why all compasses point to this location.
Inventio Fortunata (also Inventio Fortunate, Inventio Fortunat or Inventio Fortunatae), "Fortunate, or fortune-making, discovery", is a lost book, probably dating from the 14th century, containing a description of the North Pole as a magnetic island (the Rupes Nigra) surrounded by a giant whirlpool and four continents.
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According to certain authors, the Jabal Qaf of Muslim cosmology is a version of Rupes Nigra, a mountain whose ascent —such as Dante's climbing of the Mountain of Purgatory, represents the pilgrim's progress through spiritual states.
Castelnuovo Nigra, a comune (municipality) in the Province of Turin in the Italian region Piedmont; Porta Nigra, a large Roman city gate in Trier, Germany; Rupes Nigra, a phantom island, was believed to be a 33-mile-wide magnetic island of black rock located at the Magnetic North Pole
Rupes / ˈ r uː p ɪ s / (plural / ˈ r uː p iː z /) [1] is the Latin word for 'cliff'. It is used in planetary geology to refer to escarpments on other worlds. As of January 2013, the IAU has named 62 such features in the Solar System, on Mercury (17), Venus (7), the Moon (8), Mars (23), the asteroids Vesta (2) and Lutetia (2), and Uranus's satellites Miranda (2) and Titania (1).
Sediments from these deltas flowed into the East Texas and Brazos Basins of the ancient East Texas shelf. [7] The Arlington Archosaur Site is a location in Arlington, Texas that currently excavates fossils from the Woodbine Group. It became available to access by the University of Texas at Arlington (UTA) in spring of 2008.
This list of the Paleozoic life of Texas contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Texas and are between 538.8 and 252.17 million years of age.