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Rangeroceras
''Rangeroceras'' is an extinct orthoceratoid cephalopod genus that lived in what is now western North America during the latter part of the Early Ordovician. Background Shells of ''Rangeroceras'' are smooth, slightly depressed, rod-bearing orthocones with moderately large submarginal siphuncles. The siphuncular rods, which lie along the lower (ventral) side of the siphuncle interiors show thin, slightly undulating, growth lamellae in vertical longitudinal section, a somewhat unusual feature. Dorsal annuli only begin to form when the rod has almost filled the entire siphuncle toward to apical end. Connecting rings are thin, but layered. Cameral deposits are known from the dorsal side, the ventral side of the type specimen lost from erosion. Hook and Flower (1977) originally placed ''Rangeroceras'' in the family Baltoceratidae because of the siphunclular rod and thin connecting rings. Evans (2005) proposed the family Rangeroceratidae for ''Rangeroceras'' and a somewhat similar gen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rangeroceratidae
Rangeroceratidae is a family of orthoceroid cephalopods known from the late Early Ordovician in eastern North America (New York and Quebec) and Great Britain, included in the order Dissidocerida. The family was named by Evans, 2005, and contains three genera: '' Rangeroceras'', '' Anrangeroceras'', and '' Cyclorageroceras''. Rangeroceratidae is based on the genus '' Rangeroceras'', named by Hook & Flower (1977); at that time considered a member of the rod-bearing Baltoceratidae Baltoceratidae is an extinct family of orthoconic cephalopods belonging to the subclass Nautiloidea endemic to what would be Asia, Australia, Europe, North America, and South America during the Ordovician living from about 480–460 mya, exist ... along with genera like '' Rhabdiferoceras'' and '' Veneficoceras''. References * Paleobiology DatabasRangeroceratidae* D. H. Evans. 2005. The Lower and Middle Ordovician cephalopod faunas of England and Wales. Monograph of the Palaeontographical Society 62 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Veneficoceras
''Veneficoceras'' is a genus of the rod-bearing Baltoceratidae, an extinct cephalopod family with characteristics of the orthoceratoid Dissidocerida, found in Cassinianage, Lower Ordovician, limestone in western Utah Utah ( , ) is a state in the Mountain West subregion of the Western United States. Utah is a landlocked U.S. state bordered to its east by Colorado, to its northeast by Wyoming, to its north by Idaho, to its south by Arizona, and to it .... Background ''Veneficoceras'' has a large tubular siphuncle with thin connecting rings that lies along the interior ventral margin. The endosiphuncular rod appears in vertical section to bifurcate into a larger ventral rod on the bottom and a smaller and shorter dorsal rod on top. In cross section a complete lining all around would probably appear, with a dorsally offset central opening. ''Veneficoceras'' is represented only by the type species, ''Venificoceras susanae'' of which there is only the holotype, a long por ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wardoceras
''Wardoceras'' is an extinct nautiloid genus from the late Early Ordovician of Western Utah, assigned to the orthocerid family, Michelinoceratidae Background Shells of ''Wardoceras'' are smooth and orthoconic, with a circular cross section and small subcentral siphuncle, the segments of which are ventrally straight and dorsally slightly expanded into the camerae. The siphuncle is completely encircled internally by a thin lining that thickens and thins rhythmically so as to slightly thicken just forward of the septal necks, suggesting an origin in annular deposits. Cameral deposits are well developed and are thick, almost filling the ventral portion of the more apical chambers but also found in dorsal chambers as well. ''Wardoceras'' is represented by the type species, ''Wardoceras orygoforme'' which is known only from the holotype, a 97mm long portion of a phragmocone 13.5mm in diameter at the anterior end; found 25.9 m (85 ft) above the base of the Wahwah Limestone, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dissidocerida
Dissidocerida is an order of Early Ordovician to the Early Silurian orthoceratoid cephalopods in which the siphuncle has a continuous lining or a longitudinal rod-like structure within. The order Dissidocerida was proposed by Zhuravleva (1994) for ''Dissidoceras undosum'' Zhuravleva, 1964, a Silurian orthoconic genus with a wide, nearly central, tubular siphuncle, suborthochoanitic septal necks, and endosiphuncular rod; in many aspects similar to rod-bearing orthocones of the Ordovician. It is thought by some that Ordovician-Silurian orthocones with continuous longitudinal endosiphuncular laminar deposits constitute a single phylogenetic stock. The Dissidocerida as understood includes the Polymeridae, Rangeroceratidae, Troedssonellidae, and Dissidocertidae. The Polymeridae and Rangeroceratidae were proposed by Evans in 2005 for ''Polymeres'' Murchison 1839 and ''Rangeroceras'' Hook and Flower 1977, respectively. Troedssonellidae Troedssonellidae is a family of orthoce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cassinian
The Cassinian is the latest age of the Canadian Epoch when thought of temporally and the uppermost stage of the Canadian Series when thought of stratigraphically. The Canadian, either as a series or as an Epoch is the name that has been given to the Lower, or Early, Ordovician in North America and has been applied worldwide.Flower, R. H. 1964. The Nautiloid Order Ellesmeroceratida (Cephalooda), Memoir 12, State Bureau of Mines and Mineral Resources, Socorro, New Mexico.Moore, Lalicker, and Fischer 1952. Invertebrate Fossils, McGraw-Hill The Cassinian is named for the Fort Cassin Formation of Vermont. Rocks of Cassinian age are found in the Champlain Valley and among other places in North America in the Great Basin of Western Utah and Nevada, and in the uppermost El Paso Group in southern New Mexico and west Texas. The Cassinian has been given a span of only 1.2 million years, with a range from 473 - 471.8 m.y.a. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ibex Crags
Tule Valley (also known as White Valley) is a valley in Millard County, Utah, United States. Description The valley is a north-south trending endorheic valley within the Great Basin (geographically), Great Basin Desert (ecologically), and Basin and Range Province (tectonically) of west-central Utah.Schneider, Bill and Ann Seifert, ''Hiking Utah,'' Falcon, 2005, p. 102 It is bounded on the west by the , on the east by the , to the north by the |
Tajaroceras
''Tajaroceras'' is an extinct slender cephalopod from the uppermost Lower Ordovician of western North America, belonging to the Orthocerid family Troedssonellidae. Background The shell of ''Tajaroceras'' is smooth and straight. The siphuncle which is at least 0.35 the shell diameter is subcentral. Septal necks are short and the connecting rings are thin and homogeneous. The distinguishing feature of Tajaroceras lies within its siphuncle. Along the ventral side, within the siphuncle, is a continuous rod, much like that found in a group known as rod-bearing Baltoceratidae Baltoceratidae is an extinct family of orthoconic cephalopods belonging to the subclass Nautiloidea endemic to what would be Asia, Australia, Europe, North America, and South America during the Ordovician living from about 480–460 mya, exist .... On the dorsal side, overlying within, are annular deposits that grow forward to form a continuous lining that ultimately rests against the ventral rod, leaving a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jane Shaw Ward
Jane may refer to: * Jane (given name), a feminine given name * Jane (surname), related to the given name Film and television * ''Jane'' (1915 film), a silent comedy film directed by Frank Lloyd * ''Jane'' (2016 film), a South Korean drama film starring Lee Min-ji * ''Jane'' (2017 film), an American documentary film about Jane Goodall * ''Jane'' (2022 film), an American psychological thriller directed by Sabrina Jaglom * Jane (TV series), an 1980s British television series Music * ''Jane'' (album), an album by Jane McDonald * Jane (American band) * Jane (German band) * Jane, unaccompanied and original singer of "It's a Fine Day" in 1983 Songs * "Jane" (Barenaked Ladies song), 1994 * "Jane", a song by Ben Folds Five from their 1999 album ''The Unauthorized Biography of Reinhold Messner'' * "Jane" (Century song) * "Jane", a song by Elf Power * "Jane", a song by EPMD from '' Strictly Business'' * "Jane" (Jefferson Starship song), 1979 * "Jane", a song by the Loved One ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Baltoceratidae
Baltoceratidae is an extinct family of orthoconic cephalopods belonging to the subclass Nautiloidea endemic to what would be Asia, Australia, Europe, North America, and South America during the Ordovician living from about 480–460 mya, existing for approximately . Taxonomy Baltoceratidae was named by Kobayashi (1935) and assigned to the Ellesmeroceratida by Flower and Kummel (1950) where it was retained by Unklesbay and Young (1956), again by Flower (1964)Flower 1964. The Nautiloid Order Ellesmeroceratida (Cephalopoda), Memoir 12, New Mexico Bureau of Mines and Mineral Resources, Socorro, NM , and by Furnish and Glenister in Teichert et al. (1964).Teichert et al 1964, Treatise on Invertebrate Paleontology Part K Mollusca 3, Nautiloidea-Ellesmerocerida by Furnish and Glenister, K129- K153 Flower (1964) included the Baltoceratidae in the ellesmeroceratid suborder Ellesmeroceratina. Further study of baltoceratid interiors, namely regarding the generally thin connecting r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rousseau H
Jean-Jacques Rousseau (, ; 28 June 1712 – 2 July 1778) was a Genevan philosopher, writer, and composer. His political philosophy influenced the progress of the Age of Enlightenment throughout Europe, as well as aspects of the French Revolution and the development of modern political, economic, and educational thought. His ''Discourse on Inequality'' and ''The Social Contract'' are cornerstones in modern political and social thought. Rousseau's sentimental novel ''Julie, or the New Heloise'' (1761) was important to the development of preromanticism and romanticism in fiction. His ''Emile, or On Education'' (1762) is an educational treatise on the place of the individual in society. Rousseau's autobiographical writings—the posthumously published '' Confessions'' (composed in 1769), which initiated the modern autobiography, and the unfinished '' Reveries of the Solitary Walker'' (composed 1776–1778)—exemplified the late 18th-century " Age of Sensibility", and featured an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family (biology)
Family ( la, familia, plural ') is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as the "walnut family". What belongs to a family—or if a described family should be recognized at all—are proposed and determined by practicing taxonomists. There are no hard rules for describing or recognizing a family, but in plants, they can be characterized on the basis of both vegetative and reproductive features of plant species. Taxonomists often take different positions about descriptions, and there may be no broad consensus across the scientific community for some time. The publishing of new data and opini ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
