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Vancleavea
''Vancleavea'' is a genus of extinct, armoured, non- archosaurian archosauriforms from the Late Triassic of western North America. The type and only known species is ''V. campi'', named by Robert Long & Phillip A Murry in 1995. At that time, the genus was only known from fragmentary bones including osteoderms and vertebrae. However, since then many more fossils have been found, including a pair of nearly complete skeletons discovered in 2002. These finds have shown that members of the genus were bizarre semiaquatic reptiles. ''Vancleavea'' individuals had short snouts with large, fang-like teeth, and long bodies with small limbs. They were completely covered with bony plates known as osteoderms, which came in several different varieties distributed around the body. Phylogenetic analyses by professional paleontologists have shown that ''Vancleavea'' was an archosauriform, part of the lineage of reptiles that would lead to archosaurs such as dinosaurs and crocodilians. ''Vancleav ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Litorosuchus
''Litorosuchus'' is a genus of armored, semiaquatic archosauriform reptile from the Middle Triassic of China, closely related to the morphologically similar '' Vancleavea''. It contains one species, ''L. somnii''. Description For an archosauriform, ''Litorosuchus'' was medium-sized at some in length. It shows clear adaptations to a semiaquatic lifestyle: the nasal opening is retracted and angled upwards, the tail is tall and long (about 60% of the animal's entire length), the scapula is short and broad, the feet are webbed (as shown by fossilized skin impressions), the neck is long and slender, and the snout is long, with many of the teeth being conical. In many of these ways, ''Litorosuchus'' resembles the similarly semiaquatic '' Vancleavea'' from North America. Like ''Vancleavea'', the body of ''Litorosuchus'' was covered in bony plates known as osteoderms, of which eight distinct types can be observed: two rows of rectangular-to-roundish semi-concave osteoderms with cent ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Archosauriform
Archosauriformes (Greek for 'ruling lizards', and Latin for 'form') is a clade of diapsid reptiles that developed from archosauromorph ancestors some time in the Latest Permian (roughly 252 million years ago). It was defined by Jacques Gauthier (1994) as the clade stemming from the last common ancestor of Proterosuchidae and Archosauria (the group that contains crocodiles, pterosaurs and dinosaurs bird.html"_;"title="ncluding_bird">ncluding_birds;_Phil_Senter.html" ;"title="bird">ncluding_birds.html" ;"title="bird.html" ;"title="ncluding bird">ncluding birds">bird.html" ;"title="ncluding bird">ncluding birds; Phil Senter">bird">ncluding_birds.html" ;"title="bird.html" ;"title="ncluding bird">ncluding birds">bird.html" ;"title="ncluding bird">ncluding birds; Phil Senter (2005) defined it as the most exclusive clade containing ''Proterosuchus'' and Archosauria. These reptiles, which include members of the family Proterosuchidae and more advanced forms, were originally superficiall ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vanclevea
''Chrysothamnus'', known as rabbitbrush, rabbitbush, and chamisa, are a genus of shrubs in the family Asteraceae. The native distribution is in the arid western United States, Canada, and northern Mexico. It is known for its bright white or yellow flowers in late summer. ''Chrysothamnus'' may grow up to a tall shrub or subshrub, usually with woody stem bases. The leaves are alternate, sessile or with short petioles, with entire edges. The flowerheads are singular or in clusters. Each composite flower often has five to 6 (though sometimes upwards of 40) yellow disc florets and no ray florets. ''Chrysothamnus'' species are used as food plants by the larvae of some Lepidoptera species including ''Coleophora linosyridella'', ''Coleophora viscidiflorella'' (which have both been recorded on ''C. viscidiflorus'') and '' Schinia walsinghami''. ; Species * ''Chrysothamnus depressus'' – dwarf rabbitbrush, longflower rabbitbrush – California Nevada Arizona Utah Colorado New Mexico ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mandible
In anatomy, the mandible, lower jaw or jawbone is the largest, strongest and lowest bone in the human facial skeleton. It forms the lower jaw and holds the lower tooth, teeth in place. The mandible sits beneath the maxilla. It is the only movable bone of the skull (discounting the ossicles of the middle ear). It is connected to the temporal bones by the temporomandibular joints. The bone is formed prenatal development, in the fetus from a fusion of the left and right mandibular prominences, and the point where these sides join, the mandibular symphysis, is still visible as a faint ridge in the midline. Like other symphyses in the body, this is a midline articulation where the bones are joined by fibrocartilage, but this articulation fuses together in early childhood.Illustrated Anatomy of the Head and Neck, Fehrenbach and Herring, Elsevier, 2012, p. 59 The word "mandible" derives from the Latin word ''mandibula'', "jawbone" (literally "one used for chewing"), from ''wikt:mandere ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Abiquiú, New Mexico
Abiquiú (, , Tewa: ; Northern Tiwa: ) is a census-designated place in Rio Arriba County, in northern New Mexico in the southwestern United States, about 53 miles (85 km) north of Santa Fe. As of 2010, the population was 231. Abiquiú's one school, an elementary school, is part of the Española Public Schools. Abiquiú means "wild choke cherry place" in the Tewa language. It is also called Santo Tomás de Abiquiú and the Pueblo of Santo Tomás de Abiquiú. In the mid-eighteenth century, the Spanish crown provided land grants to '' Genízaros'' here and in other places to establish buffer towns to defend the frontier from raiding tribes such as the Comanche. Abiquiú was one of the homes of American artist Georgia O'Keeffe from 1929 until 1984. The Georgia O'Keeffe Home and Studio is in Abiquiú. The artist also owned property at the nearby Ghost Ranch. Many of her paintings depict scenes near Abiquiú. Demographics History Abiquiú was first settled in 1742 by 24 Tewa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ghost Ranch
Ghost Ranch is a retreat and education center located close to the village of Abiquiú in Rio Arriba County in north central New Mexico, United States. It was the home and studio of Georgia O'Keeffe, as well as the subject of many of her paintings. Ghost Ranch is also known for a remarkable concentration of fossils, most notably that of the theropod dinosaur ''Coelophysis'', of which it has been estimated that nearly a thousand individuals have been preserved in a quarry at Ghost Ranch. History Ghost Ranch is part of Piedra Lumbre (Spanish, "Shining Rock"), a 1766 land grant to Pedro Martin Serrano from Charles III of Spain. The Rito del Yeso is a stream that meanders through the canyons and gorge, providing a drought-resistant source of water for life to thrive. In 1976, Ghost Ranch was designated as a National Natural Landmark by the National Park Service. The canyon was first inhabited by the Archuleta brothers, cattle rustlers who enjoyed the coverage and invisibility tha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2009 In Paleontology
Arthropods Cephalopods Three new species of extinct octopus, Octopoda discovered in 2009. The species – ''Keuppia hyperbolaris'', ''Keuppia levante'', and ''Styletoctopus annae'' – lived about 95 million years ago, and bear a strong resemblance to modern octopuses, suggesting that the Octopoda order has remained relatively unchanged for tens of millions of years. The fossils included evidence of cephalopod arm, arms, muscles, rows of suckers, cephalopod ink, ink, and internal gills. The discovery was made by a team led by Dirk Fuchs of the Freie University, which is located at Berlin, Germany.Rare fossil octopuses found NBC News, March 18, 2009 The fossils were found at Hakel and Hadjoula, Lebanon. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Holotype
A holotype is a single physical example (or illustration) of an organism, known to have been 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, an isotype is a duplicate of the holotype, where holotype and isotypes are often pieces from the same individual plant or samples from the same gathering. A holotype is not necessarily "typ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Petrified Forest National Park
Petrified Forest National Park is an American national park in Navajo County, Arizona, Navajo and Apache County, Arizona, Apache counties in northeastern Arizona. Named for its large deposits of petrified wood, the park covers about , encompassing semi-desert shrub steppe as well as highly eroded and colorful badlands. The park's headquarters is about east of Holbrook, Arizona, Holbrook along Interstate 40 (I-40), which parallels the BNSF Railway's Southern Transcon, the Puerco River, and historic U.S. Route 66, all crossing the park roughly east–west. The site, the northern part of which extends into the Painted Desert, Arizona, Painted Desert, was declared a National monument (United States), national monument in 1906 and a national park in 1962. The park received 644,922 recreational visitors in 2018. Averaging about in elevation, the park has a dry windy climate with temperatures that vary from summer highs of about to winter lows well below freezing. More than 400 specie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chinle Formation
The Chinle Formation is an Upper Triassic continental geological formation of fluvial, lacustrine, and palustrine to eolian deposits spread across the U.S. states of Nevada, Utah, northern Arizona, western New Mexico, and western Colorado. In New Mexico, it is often raised to the status of a geological group, the Chinle Group. Some authors have controversially considered the Chinle to be synonymous to the Dockum Group of eastern Colorado and New Mexico, western Texas, the Oklahoma panhandle, and southwestern Kansas. The Chinle Formation is part of the Colorado Plateau, Basin and Range, and the southern section of the Interior Plains.GEOLEX database entry for Chinle USGS (viewed 19 March 2006) A probable separate depositional basin within the Chinle is found in northwestern Colorado and northeastern Ut ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1962 In Paleontology
Paleozoology Conodont paleozoology German paleontologist Klaus J. Müller (1923-2010) described the conodont order Paraconodontida.Supplement to systematics of conodonts. KJ Müller and RC Moore, in Treatise on invertebrate paleontology The ''Treatise on Invertebrate Paleontology'' (or ''TIP'') published by the Geological Society of America and the University of Kansas Press, is a definitive multi-authored work of some 50 volumes, written by more than 300 paleontologists, and co ..., Part W: Miscellanea : Conodonts Conoidal Shells of Uncertain Affinities, Worms, Trace Fossils, and Problema, 1962 - Geological Society of America Vertebrates Dinosaurs Newly named dinosaurs Data courtesy of George Olshevsky's dinosaur genera list. Birds Newly named birds References {{portal, Paleontology 1960s in paleontology ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ghost Ranch Coelophysis Quarry
A ghost is the soul or spirit of a dead person or animal that is believed to be able to appear to the living. In ghostlore, descriptions of ghosts vary widely from an invisible presence to translucent or barely visible wispy shapes, to realistic, lifelike forms. The deliberate attempt to contact the spirit of a deceased person is known as necromancy, or in spiritism as a ''séance''. Other terms associated with it are apparition, haunt, phantom, poltergeist, shade, specter or spectre, spirit, spook, wraith, demon, and ghoul. The belief in the existence of an afterlife, as well as manifestations of the spirits of the dead, is widespread, dating back to animism or ancestor worship in pre-literate cultures. Certain religious practices—funeral rites, exorcisms, and some practices of spiritualism and ritual magic—are specifically designed to rest the spirits of the dead. Ghosts are generally described as solitary, human-like essences, though stories of ghostly armies and th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
