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Ziapelta Sanjuanensis
''Ziapelta'' is an extinct genus of Ankylosauridae, ankylosaurid. Its fossils have been found in the Hunter Wash and De-na-zin Stratigraphic unit, members of the Kirtland Formation of Upper Cretaceous (Campanian) New Mexico. It was named in 2014, in a research paper led by Ankylosauria, ankylosaur researcher Victoria Arbour. There is a single species in the genus, ''Ziapelta sanjuanensis.'' The genus is named after the Zia sun symbol, a stylized sun with four groups of rays, having religious significance to the Zia people (New Mexico), Zia people of New Mexico, and the iconic symbol on the State flag (USA), state flag of New Mexico, and ''pelta'' (Latin), a small shield, in reference to the osteoderms found on all ankylosaurids. The Specific name (zoology), specific name is in reference to San Juan County, New Mexico, San Juan County and the San Juan Basin, San Juan basin, where the fossils were found. Multiple specimens have been described to date, though the fossils are mostly f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kirtland Formation
The Kirtland Formation (originally the Kirtland Shale) is a Sedimentary rock, sedimentary geological formation. Description The Kirtland Formation is the product of alluvial muds and overbank sand deposits from the many channels draining the coastal plain that existed on the Cretaceous Interior Seaway, inland seashore of North America, in the late Cretaceous period. It overlies the Fruitland Formation. It is found in the San Juan Basin in the states of New Mexico and Colorado, in the United States of America. The base of the Kirtland Formation and its lowest sub-unit, the Hunter Wash member, has been dated to 75.02 ± 0.13 Ma. Together with the upper part of the underlying Fruitland Formation, this contains fossils representing the Hunter Wash local fauna. The border between the Hunter Wash member and overlying Farmington member dates to approximately 74 million years ago. The top of the Farmington member and bottom of the overlying De-na-zin member has been radiometrically da ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Campanian
The Campanian is the fifth of six ages of the Late Cretaceous epoch on the geologic timescale of the International Commission on Stratigraphy (ICS). In chronostratigraphy, it is the fifth of six stages in the Upper Cretaceous Series. Campanian spans the time from 83.6 (± 0.2) to 72.1 (± 0.2) million years ago. It is preceded by the Santonian and it is followed by the Maastrichtian. The Campanian was an age when a worldwide sea level rise covered many coastal areas. The morphology of some of these areas has been preserved: it is an unconformity beneath a cover of marine sedimentary rocks. Etymology The Campanian was introduced in scientific literature by Henri Coquand in 1857. It is named after the French village of Champagne in the department of Charente-Maritime. The original type locality was a series of outcrops near the village of Aubeterre-sur-Dronne in the same region. Definition The base of the Campanian Stage is defined as a place in the stratigraphic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
San Juan County, New Mexico
San Juan County () is a County (United States), county located in the U.S. state of New Mexico. As of the 2020 United States census, 2020 census, its population was 121,661 making it the fifth-most populous county in New Mexico. Its county seat is Aztec, New Mexico, Aztec. The county was created in 1887. San Juan County is part of the Farmington, New Mexico, metropolitan statistical area. It is in the state's northwest corner and includes the New Mexico portion of the Four Corners. Geography According to the United States Census Bureau, U.S. Census Bureau, the county has a total area of , of which (0.5%) are covered by water. Indian reservations (and off-reservation trust lands) comprise 63.4% of the county's land area. The Navajo Nation takes up 60.45% and the Ute Mountain Ute Tribe Reservation occupies another 2.93%. The physical features include three rivers - the San Juan, Animas, and La Plata Rivers, and the Chuska Mountains and Shiprock Pinnacle to the west, volcan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spencer Lucas
Spencer George Lucas is an American paleontologist and stratigrapher, and curator of paleontology at the New Mexico Museum of Natural History and Science. His main areas of study are late Paleozoic, Mesozoic and early Cenozoic vertebrate fossils, stratigraphy, and continental deposits, particularly in the American Southwest. His research has taken him on field trips to northern Mexico, Costa Rica, Nicaragua, Jamaica, Kazakhstan, and Georgia, and he conducted extensive field and museum research in China in the 1980s and 1990s. He has written more than 500 scientific contributions (about 25-percent are articles in peer-reviewed journals), three books, and has co-edited 14 books. In 2007, some publications by Lucas and associates at the New Mexico Museum of Natural History and Science came under scrutiny after allegations that information was improperly taken from the unpublished and in-press work of graduate students not on his team. Formal complaints were made to the New Mexico D ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PLOS
PLOS (for Public Library of Science; PLoS until 2012) is a nonprofit publisher of open-access journals in science, technology, and medicine and other scientific literature, under an open-content license. It was founded in 2000 and launched its first journal, '' PLOS Biology'', in October 2003. As of 2024, PLOS publishes 14 academic journals, including 7 journals indexed within the Science Citation Index Expanded, and consequently 7 journals ranked with an impact factor. PLOS journals are included in the Directory of Open Access Journals (DOAJ). PLOS is also a member of the Open Access Scholarly Publishers Association (OASPA), a participating publisher and supporter of the Initiative for Open Citations, and a member of the Committee on Publication Ethics (COPE). History The Public Library of Science began in 2000 with an online petition initiative by Nobel Prize winner Harold Varmus, formerly director of the National Institutes of Health and at that time director ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Argon Dating
Argon is a chemical element; it has symbol Ar and atomic number 18. It is in group 18 of the periodic table and is a noble gas. Argon is the third most abundant gas in Earth's atmosphere, at 0.934% (9340 ppmv). It is more than twice as abundant as water vapor (which averages about 4000 ppmv, but varies greatly), 23 times as abundant as carbon dioxide (400 ppmv), and more than 500 times as abundant as neon (18 ppmv). Argon is the most abundant noble gas in Earth's crust, comprising 0.00015% of the crust. Nearly all argon in Earth's atmosphere is radiogenic argon-40, derived from the decay of potassium-40 in Earth's crust. In the universe, argon-36 is by far the most common argon isotope, as it is the most easily produced by stellar nucleosynthesis in supernovas. The name "argon" is derived from the Greek word , neuter singular form of meaning 'lazy' or 'inactive', as a reference to the fact that the element undergoes almost no chemical reactions. The complete octet (eight elec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Holotype
A holotype (Latin: ''holotypus'') is a single physical example (or illustration) of an organism used when the species (or lower-ranked taxon) was formally described. It is either the single such physical example (or illustration) or one of several examples, but explicitly designated as the holotype. Under the International Code of Zoological Nomenclature (ICZN), a holotype is one of several kinds of name-bearing types. In the International Code of Nomenclature for algae, fungi, and plants (ICN) and ICZN, the definitions of types are similar in intent but not identical in terminology or underlying concept. For example, the holotype for the butterfly '' Plebejus idas longinus'' is a preserved specimen of that subspecies, held by the Museum of Comparative Zoology at Harvard University. In botany and mycology, an isotype is a duplicate of the holotype, generally pieces from the same individual plant or samples from the same genetic individual. A holotype is not necessarily "ty ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bisti/De-Na-Zin Wilderness
The Bisti/De-Na-Zin Wilderness is a wilderness area located in San Juan County in the U.S. state of New Mexico. Established in 1984, the Wilderness is a desolate area of steeply eroded badlands managed by the Bureau of Land Management, except three parcels of private Navajo land within its boundaries.Bisti/De-Na-Zin Wilderness - Wilderness.net The , signed March 12, 2019, expanded the Bisti/De-Na-Zin Wilderness by approximately 2,250 acres. Translated from the |
Robert Michael Sullivan
Robert Michael "Bob" Sullivan (born August 4, 1951) is a Vertebrate_paleontology, vertebrate paleontologist, noted for his work on fossil lizards and dinosaurs. Sullivan discovered the second and most complete skull of the Hadrosauridae, hadrosaurid dinosaur, ''Parasaurolophus tubicen'', and skulls of the ankylosaurids ''Nodocephalosaurus kirtlandensis'' and ''Ziapelta sanjuanensis.'' He also made contributions to Late Cretaceous vertebrate faunas from the San Juan Basin, New Mexico, including establishing the Kirtlandian land vertebrate "age" for a time interval between the Judithian and younger Edmontonian "ages". Sullivan is also noted for his work on Pachycephalosauria, pachycephalosaurid dinosaurs, and was an early vocal critic of the asteroid impact theory as the cause for dinosaur extinction. Early life Born in Queens, Queens, New York, to parents Robert F. Sullivan and Marian E. Sullivan, Sullivan lived in Tarrytown, New York (1951-1953) and moved to Fairfield, Conn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
State Museum Of Pennsylvania
The State Museum of Pennsylvania is a non-profit history museum at 300 North Street in downtown Harrisburg, Pennsylvania, United States. It is run by the Pennsylvania Historical and Museum Commission to preserve and interpret the Commonwealth's history and culture. It is a part of the Pennsylvania State Capitol Complex. History On March 28, 1905, Governor Samuel W. Pennypacker signed legislation establishing the museum for "the preservation of objects illustrating the flora and fauna of the state, and its mineralogy, geology, archeology, arts and history." The State Museum of Pennsylvania mission statement was influenced by the many other state museums that were already established, including those in New York, Illinois, and Indiana. Later in 1905, Pennypacker signed Act 481, giving the museum $20,000 in startup funding for its creation. On March 1, 1907, the museum staff and collection moved into the Executive Office Building. It became part of the Pennsylvania Historical an ... [...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. History The museum was created by an act of the New Mexico Legislature signed into law by Governor Bruce King in March, 1980. Part of the motivation for the project was to provide a home for some of the numerous dinosaur fossils discovered in New Mexico rather than sending them to out-of-state institutions. Ground was broken on a site near Old Town and the museum opened on January 11, 1986. It was one of the first new natural history museums in the U.S. in decades and represented an updated approach focusing on interactive multimedia exhibits rather than large collections of specimens displayed in glass cases. An astronomy center including an observatory and planetarium was added to the museum in 1999. This was o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
