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Rhinocarcinosoma
''Rhinocarcinosoma'' is a genus of eurypterid, an extinct group of aquatic arthropods. Fossils of ''Rhinocarcinosoma'' have been discovered in deposits ranging of Late Silurian age in the United States, Canada and Vietnam. The genus contains three species, the American ''R. cicerops'' and ''R. vaningeni'' and the Vietnamese ''R. dosonensis''. The generic name is derived from the related genus ''Carcinosoma'', and the Greek ῥινός (rhinós, "nose"), referring to the unusual shovel-shaped protrusion on the front of the carapace (head plate) of ''Rhinocarcinosoma'', its most distinctive feature. Other than the protrusion, ''Rhinocarcinosoma'' was anatomically very similar to its close relative, ''Eusarcana'', though it lacked the scorpion-like telson (the posteriormost division of the body) of that genus. Further distinguishing features include more slender appendages and slightly different ornamentation of scales. In terms of size, ''Rhinocarcinosoma'' was a medium-sized carc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhinocarcinosoma Cicerops Fossils
''Rhinocarcinosoma'' is a genus of eurypterid, an extinct group of aquatic arthropods. Fossils of ''Rhinocarcinosoma'' have been discovered in deposits ranging of Late Silurian age in the United States, Canada and Vietnam. The genus contains three species, the American ''R. cicerops'' and ''R. vaningeni'' and the Vietnamese ''R. dosonensis''. The generic name is derived from the related genus ''Carcinosoma'', and the Greek ῥινός (rhinós, "nose"), referring to the unusual shovel-shaped protrusion on the front of the carapace (head plate) of ''Rhinocarcinosoma'', its most distinctive feature. Other than the protrusion, ''Rhinocarcinosoma'' was anatomically very similar to its close relative, ''Eusarcana'', though it lacked the scorpion-like telson (the posteriormost division of the body) of that genus. Further distinguishing features include more slender appendages and slightly different ornamentation of scales. In terms of size, ''Rhinocarcinosoma'' was a medium-sized ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhinocarcinosoma Dosonensis
''Rhinocarcinosoma'' is a genus of eurypterid, an extinct group of aquatic arthropods. Fossils of ''Rhinocarcinosoma'' have been discovered in deposits ranging of Late Silurian age in the United States, Canada and Vietnam. The genus contains three species, the American ''R. cicerops'' and ''R. vaningeni'' and the Vietnamese ''R. dosonensis''. The generic name is derived from the related genus ''Carcinosoma'', and the Greek ῥινός (rhinós, "nose"), referring to the unusual shovel-shaped protrusion on the front of the carapace (head plate) of ''Rhinocarcinosoma'', its most distinctive feature. Other than the protrusion, ''Rhinocarcinosoma'' was anatomically very similar to its close relative, ''Eusarcana'', though it lacked the scorpion-like telson (the posteriormost division of the body) of that genus. Further distinguishing features include more slender appendages and slightly different ornamentation of scales. In terms of size, ''Rhinocarcinosoma'' was a medium-sized ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carcinosomatidae
Carcinosomatidae (the name deriving from the type genus ''Carcinosoma'', meaning "crab body")Meaning osomaat ''www.dictionary.com''. Retrieved 7 September 2018. is a family of eurypterids, an extinct group of aquatic arthropods. They were members of the superfamily Carcinosomatoidea, also named after ''Carcinosoma''. Fossils of carcinosomatids have been found in North America, Europe and Asia, the family possibly having achieved a worldwide distribution, and range in age from the Late Ordovician to the Early Devonian. They were among the most marine eurypterids, known almost entirely from marine environments. Carcinosomatids varied considerably in size, from species only a few centimetres in length to some of the largest known arthropods. The largest carcinosomatid species, ''Carcinosoma punctatum'', reached lengths of at least and rivalled the largest eurypterid of all, ''Jaekelopterus'', in size. Morphologically, carcinosomatids were highly distinct from other eurypterids, k ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carcinosoma
''Carcinosoma'' (meaning "crab body") is a genus of eurypterid, an extinct group of aquatic arthropods. Fossils of ''Carcinosoma'' are restricted to deposits of late Silurian (Late Llandovery to Early Pridoli) age. Classified as part of the family Carcinosomatidae, which the genus lends its name to, ''Carcinosoma'' contains seven species from North America and Great Britain. Carcinosomatid eurypterids had unusual proportions and features compared to other eurypterids, with a broad abdomen, thin and long tail and spined and forward-facing walking appendages. They were not as streamlined as other groups but had considerably more robust and well developed walking appendages. In ''Carcinosoma'', these spined walking appendages are thought to have been used to create a trap to capture prey in. The telson (the posteriormost division of the body) of ''Carcinosoma'' appears to have possessed distinct segmentation, ''Carcinosoma'' is the only known eurypterid to possess this feature. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eusarcana
''Eusarcana'' (meaning "true flesh") is a genus of eurypterid, an extinct group of aquatic arthropods. Fossils of ''Eusarcana'' have been discovered in deposits ranging in age from the Early Silurian to the Early Devonian. Classified as part of the family Carcinosomatidae, the genus contains three species, ''E. acrocephalus'', ''E. obesus'' and ''E. scorpionis'', from the Silurian- Devonian of Scotland, the Czech Republic and the United States respectively. ''Eusarcana'' is known for its odd proportions and features; the broad abdomen, thin and long tail, spined and forward-facing walking appendages and sharp and curved tail spike differentiate it from most other eurypterids, but are shared with other carcinosomatid eurypterids. The triangular carapace, oddly positioned forward-facing eyes differentiate the genus further from its closest relatives. At 80 centimetres (31.5 in) in length, ''E. scorpionis'' represents a moderately large species of eurypterid, and far exceeded ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Silurian
The Silurian ( ) is a geologic period and system spanning 24.6 million years from the end of the Ordovician Period, at million years ago ( Mya), to the beginning of the Devonian Period, Mya. The Silurian is the shortest period of the Paleozoic Era. As with other geologic periods, the rock beds that define the period's start and end are well identified, but the exact dates are uncertain by a few million years. The base of the Silurian is set at a series of major Ordovician–Silurian extinction events when up to 60% of marine genera were wiped out. One important event in this period was the initial establishment of terrestrial life in what is known as the Silurian-Devonian Terrestrial Revolution: vascular plants emerged from more primitive land plants, dikaryan fungi started expanding and diversifying along with glomeromycotan fungi, and three groups of arthropods (myriapods, arachnids and hexapods) became fully terrestrialized. A significant evolutionary milestone during ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New York (state)
New York, officially the State of New York, is a state in the Northeastern United States. It is often called New York State to distinguish it from its largest city, New York City. With a total area of , New York is the 27th-largest U.S. state by area. With 20.2 million people, it is the fourth-most-populous state in the United States as of 2021, with approximately 44% living in New York City, including 25% of the state's population within Brooklyn and Queens, and another 15% on the remainder of Long Island, the most populous island in the United States. The state is bordered by New Jersey and Pennsylvania to the south, and Connecticut, Massachusetts, and Vermont to the east; it has a maritime border with Rhode Island, east of Long Island, as well as an international border with the Canadian provinces of Quebec to the north and Ontario to the northwest. New York City (NYC) is the most populous city in the United States, and around two-thirds of the state's popul ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Mason Clarke
John Mason Clarke (April 15, 1857 – May 29, 1925) was an American teacher, geologist and paleontologist. __TOC__ Early career Born in Canandaigua, New York, the fifth of six children of Noah Turner Clarke and Laura Mason Merrill, he attended Canandaigua Academy where his father was teacher and principal. In 1873 he matriculated to Amherst College, where he graduated with a bachelor's degree in 1877. He returned to Canandaigua Academy and served as an instructor in various subjects. In 1879–1880 he worked as an assistant to Benjamin K. Emerson at Amherst, then he taught at the Utica Free Academy during 1880–1881. This was followed by work as an instructor at Smith College from 1881–1882, where he was made professor. During his second year at Smith, his first three scientific papers were published, concerning arthropods. It was at this point that he traveled to Göttingen University in 1883, where he hoped to study for a doctorate. However, an accusation of heterodox ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rudolf Ruedemann
Rudolf Ruedemann (October 16, 1864–June 18, 1956) was a German American paleontologist, widely known as an expert in graptolites, enigmatic fossil animals. He worked at the New York State Museum for over 40 years, including a decade as State Paleontologist of New York. and was elected to the U.S. National Academy of Sciences in 1928. Born in Georgenthal, Germany, he was educated in Europe, earning a PhD in 1887 from the University of Jena (Ph.D., 1887), and a second doctorate in 1889 from the University of Strasbourg where he was an assistant in geology from 1887 to 1892. He emigrated to the United States in 1892 and taught at the high schools of Lowville and Dolgeville, New York for several years before joining the State Museum in 1899, where he worked for the remainder of his career. Although his primary interests were in graptolites he also made contributions to other areas of invertebrate paleontology, describing new species of fossil corals, eurypterids ("sea scorpion ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Otisville, New York
Otisville is a village in Orange County, New York, United States. The population was 969 at the 2020 census. It is part of the Poughkeepsie– Newburgh– Middletown, NY Metropolitan Statistical Area as well as the larger New York–Newark–Bridgeport, NY- NJ- CT- PA Combined Statistical Area. The village of Otisville is in the town of Mount Hope, located near the western town line. The mayor of Otisville is Brian Wona. The name "Otisville" also refers to Federal Correctional Institution, Otisville and Otisville Correctional Facility, a state prison, both located nearby. There is also the station on Metro-North's Port Jervis Line. History The community was settled in 1816. The community was named after Isaac Otis, an early settler and local merchant. A former sanitarium located near the village is now a New York state prison. The sanitarium became a boys' training school for the state, and served as such until some time in the 1970s, when it was transform ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gritstone
Gritstone or grit is a hard, coarse-grained, siliceous sandstone. This term is especially applied to such sandstones that are quarried for building material. British gritstone was used for millstones to mill flour, to grind wood into pulp for paper and for grindstones to sharpen blades. "Grit" is often applied to sandstones composed of angular sand grains. It may commonly contain small pebbles. " Millstone Grit" is an informal term for a succession of gritstones which are to be found in the Pennines (including the Peak District) of northern England. These sediments were laid down in the late (upper) Paleozoic era, in the Carboniferous period, in deltaic conditions. The Millstone Grit Group is a formal stratigraphic term for this sequence of rocks. The gritstone edges of the Peak District are an important climbing area and the rock is much relished by English climbers, among whom it has almost cult status and is often referred to as "God's own rock". The rough surface provide ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
