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Palmichnium
''Palmichnium'' ("palm trace") is an ichnofossil genus, interpreted as a eurypterid trackway. It has been found by many places around the world, such as Australia, Canada, United States or Wales. Its trackways consist of three or four subcircular tracks that are symmetrical around a midline impression that is arranged en echelon with a high angle to the midline. Ichnospecies The ichnogenus contains eight ichnospecies. *''Palmichnium antarcticum'' Gevers ''et al.'', 1971 *''Palmichnium capensis'' Anderson, 1975 *''?Palmichnium culmicum'' Pfeiffer, 1968 *''Palmichnium kosinskiorum'' Briggs and Rolfe, 1983 *''Palmichnium macdonaldi'' Braddy, 1995 *''Palmichnium palmatum'' Richter, 1954 (type) *''Palmichnium pottsae'' Braddy and Anderson, 1996 *''Palmichnium stoermeri'' Briggs and Rolfe, 1983 History of research In 1975, Ann M. Anderson described a new ichnospecies of '' Petalichnus'' from the Table Mountain Sandstone of South Africa, ''P. capensis'', Ordovician in time. Its ich ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eurypterid
Eurypterids, often informally called sea scorpions, are a group of extinct arthropods that form the Order (biology), order Eurypterida. The earliest known eurypterids date to the Darriwilian stage of the Ordovician period 467.3 Myr, million years ago. The group is likely to have appeared first either during the Early Ordovician or Late Cambrian period. With approximately 250 species, the Eurypterida is the most diverse Paleozoic Chelicerata, chelicerate order. Following their appearance during the Ordovician, eurypterids became major components of marine faunas during the Silurian, from which the majority of eurypterid species have been described. The Silurian genus ''Eurypterus'' accounts for more than 90% of all known eurypterid specimens. Though the group continued to diversify during the subsequent Devonian period, the eurypterids were heavily affected by the Late Devonian extinction event. They declined in numbers and diversity until becoming extinct during the Permian–Tri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Onychopterella
''Onychopterella'' ( , from Ancient Greek: ὄνῠξ (''ónyx''), "claw", and πτερόν (''pteron''), "wing") is a genus of predatory eurypterid ("sea scorpion"), an extinct group of aquatic arthropods. Fossils of ''Onychopterella'' have been discovered in deposits from the Late Ordovician to the Late Silurian. The genus contains three species: ''O. kokomoensis'', the type species, from the Early Pridoli epoch of Indiana; ''O. pumilus'', from the Early Llandovery epoch of Illinois, both from the United States; and ''O. augusti'', from the Late Hirnantian to Early Rhuddanian stages of South Africa. Its prosoma (head) could be subquadrate (almost square) or subrectangular (almost rectangular), with reniform (kidney-shaped) eyes. The appendages (limbs) were generally long and narrow with a spine on their tip. The abdomen and telson (the posteriormost division of the body) had different shapes and sizes depending on the species. The ornamentation of the body consisted of s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Naturmuseum Senckenberg
The Naturmuseum Senckenberg is a museum of natural history, located in Frankfurt am Main. It is the second-largest of its type in Germany. The museum contains a large and diverse collection of birds with 90,000 bird skins, 5,050 egg sets, 17,000 skeletons, and 3,375 spirit specimens (a specimen preserved in fluid). In 2010, almost 517,000 people visited the museum. The building housing the Senckenberg Museum was erected between 1904 and 1907 outside of the center of Frankfurt in the same area as the Johann Wolfgang Goethe University, which was founded in 1914. The museum is owned and operated by the Senckenberg Nature Research Society, which began with an endowment by Johann Christian Senckenberg. Attractions include a ''Diplodocus'' (donated by the American Museum of Natural History on the occasion of the present museum building's inauguration in 1907), the crested Hadrosaur ''Parasaurolophus'', a fossilized ''Psittacosaurus'' with clear bristles around its tail and visible f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Onychopterellid
Onychopterellidae are an extinct family of eurypterids. The family is the only family classified as part of the superfamily Onychopterelloidea. Genera included are ''Alkenopterus'', ''Onychopterella'' and ''Tylopterella''.Dunlop, J. A., Penney, D. & Jekel, D. 2015. A summary list of fossil spiders and their relatives. In World Spider Catalog. Natural History Museum Bern, online at http://wsc.nmbe.ch, version 16.0 http://www.wsc.nmbe.ch/resources/fossils/Fossils16.0.pdf (PDF). See also * List of eurypterids This list of eurypterid genera is a comprehensive listing of all genera that have ever been included in the order Eurypterida, excluding purely vernacular terms. The list includes all commonly accepted genera, but also genera that are now conside ... References Onychopterelloidea Devonian animals Ordovician animals Prehistoric arthropod families {{eurypterid-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Madera Formation
The Madera Group is a group of geologic formations in northern New Mexico. Its fossil assemblage dates the formation to the middle to late Pennsylvanian period. Description The group consists primarily of marine limestones, and it is exposed in the Sandia Mountains, the Lucero Uplift (), the western Jemez Mountains, the Sangre de Cristo Mountains, and in the Manzano Mountains. The lower section of the group tends to be a gray limestone and the upper an arkosic limestone, and these have been divided into the La Pasada Formation and Alamitos Formation in the southern Sangre de Cristo Mountains. In the Manzano Mountains, the Madera has been divided into the Los Moyos, Wild Cow, and Bursum Formations. Another proposed division in the southeastern Sangre de Cristo Mountains is into the Porvenir and Alamitos Formations. Barry Kues and Katherine Giles have recommended the division of the Madera Group into the Gray Mesa Formation and Atrasado Formation in its western and southern ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Adelophthalmus
''Adelophthalmus'' is a genus of eurypterid, an extinct group of aquatic arthropods. Fossils of ''Adelophthalmus'' have been discovered in deposits ranging in age from the Early Devonian to the Early Permian, which makes it the longest lived of all known eurypterid genera, with a total temporal range of over 120 million years. ''Adelopththalmus'' was the final genus of the Eurypterina suborder of eurypterids and consisted the only known genus of swimming eurypterids from the Middle Devonian until its extinction during the Permian, after which the few surviving eurypterids were all walking forms of the suborder Stylonurina. Fossils of ''Adelophthalmus'' have been described from four continents; North America, Europe, Asia and Australia, which indicates that ''Adelophthalmus'' might have had a nearly cosmopolitan (worldwide) distribution, one of few eurypterid genera to achieve one besides potentially ''Pterygotus''. The territorial expansion of ''Adelophthalmus'' had begun early, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robledo Mountains
The Robledo Mountains are a mountain range in Doña Ana County, New Mexico just northwest of Las Cruces. They are an uplifted block of Paleozoic rocks on the west side of the Rio Grande Rift. The range was named for Pedro Robledo, who died on May 21, 1598 and was buried nearby. Robledo was the first casualty of the Oñate expedition, sent to colonize the upper Rio Grande valley. A native of Toledo, Spain, Robledo was accompanied on the expedition by his wife and five children. These mountains are home to Early Permian trackways of invertebrates and vertebrates. In 2009, the main locality was designated the 100th ''active'' national monument in the United States, and named Prehistoric Trackways National Monument. Rock outcrops in the area preserve numerous examples of early Permian trackways. These trackways include prints of ''Dimetrodon'', ''Edaphosaurus'', ''Eryops'', ''Cacops'' and many other small pelycosaurs. Wilderness Established in 2019 by the U.S. Congress, the Rob ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ichnofauna
Ichnofauna is the diversity of fauna based on the ichnological ( tracks and footprints) evidences. This term is often used by vertebrate paleontologists.Mateus, O., & Milàn, J. 2010. A diverse Upper Jurassic dinosaur ichnofauna from central‐west Portugal. Lethaia, 43(2), 245-257. Ichnofauna often uses parataxonomical names for tracks such as ''Deltapodus'', ''Eubrontes'', or ''Cruziana ''Cruziana'' is a trace fossil consisting of elongate, bilobed, approximately bilaterally symmetrical burrows, usually preserved along bedding planes, with a sculpture of repeated striations that are mostly oblique to the long dimension. It is fo ...''. Ichnofauna does not give a true content of the fauna assemblage, because of bias of preservation. References {{Reflist Trace fossils ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Mexico Museum Of Natural History And Science
The New Mexico Museum of Natural History and Science is a natural history and science museum in Albuquerque, New Mexico near Old Town Albuquerque. The Museum was founded in 1986. It operates as a public revenue facility of the New Mexico Department of Cultural Affairs. Permanent exhibits The Museum's permanent exhibit halls illustrate a journey through time, covering the birth of the Universe (≈13.6 billion years ago) to the Ice Age (≈10,000 years ago). The eight journey through time halls are as follows: *Origins *Dawn of the Dinosaurs *Jurassic Age of Super Giants *New Mexico's Seacoast *Age of Volcanoes *Rise of the Recent - Evolving Grasslands *Cave Experience *New Mexico's Ice Age Other permanent exhibits include an interactive planetarium where programs are held daily. There is also a floor of exhibit galleries dedicated to astronomy and space exploration, as well as an observation deck for viewing through the telescope. The observatory opens only occasionally, usually ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Mexico
) , population_demonym = New Mexican ( es, Neomexicano, Neomejicano, Nuevo Mexicano) , seat = Santa Fe , LargestCity = Albuquerque , LargestMetro = Tiguex , OfficialLang = None , Languages = English, Spanish ( New Mexican), Navajo, Keres, Zuni , Governor = , Lieutenant Governor = , Legislature = New Mexico Legislature , Upperhouse = Senate , Lowerhouse = House of Representatives , Judiciary = New Mexico Supreme Court , Senators = * * , Representative = * * * , postal_code = NM , TradAbbreviation = N.M., N.Mex. , area_rank = 5th , area_total_sq_mi = 121,591 , area_total_km2 = 314,915 , area_land_sq_mi = 121,298 , area_land_km2 = 314,161 , area_water_sq_mi = 292 , area_water_km2 = 757 , area_water_percent = 0.24 , population_as_of = 2020 , population_rank = 36th , 2010Pop = 2,117,522 , population_density_rank = 45th , 2000DensityUS = 17.2 , 2000Density = 6.62 , MedianHouseholdIncome = $51,945 , IncomeRank = 45th , AdmittanceOrder = ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hueco Formation
The Hueco Formation is a geologic formation in west Texas and southern New Mexico.Richardson 1904Richardson 1908Richardson 1914 It preserves fossils dating back to the early Permian period.Nelson 1940Bachman and Hayes 1958 Description The formation is composed most of massive gray fossiliferous limestone with some shale and sandstone, with a thickness in excess of . It overlies the Panther Seep FormationKelley and Matheny 1983 with a slight disconformity, and its base is typically a thick biostromal limestone bed.Kues and Giles 2004 The formation unconformably underlies the Wilkie Ranch Formation.Cys 1976 It intertongues with the Abo Formation in the southern San Andres Mountains. In the Robledo Mountains, the Hueco is promoted to group rank and divided into (in ascending stratigraphic order) the Shalem Colony, Community Pit, Robledo Mountains, and Apache Dam Formations.Lucas ''et al.'' 1998 In the Hueco Mountains, the uppermost formation is the Alacran Mountain Formation.Will ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Permian
The Permian ( ) is a geologic period and stratigraphic system which spans 47 million years from the end of the Carboniferous Period million years ago (Mya), to the beginning of the Triassic Period 251.9 Mya. It is the last period of the Paleozoic Era; the following Triassic Period belongs to the Mesozoic Era. The concept of the Permian was introduced in 1841 by geologist Sir Roderick Murchison, who named it after the region of Perm in Russia. The Permian witnessed the diversification of the two groups of amniotes, the synapsids and the sauropsids ( reptiles). The world at the time was dominated by the supercontinent Pangaea, which had formed due to the collision of Euramerica and Gondwana during the Carboniferous. Pangaea was surrounded by the superocean Panthalassa. The Carboniferous rainforest collapse left behind vast regions of desert within the continental interior. Amniotes, which could better cope with these drier conditions, rose to dominance in place of their am ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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