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Acastocephala
''Acastocephala'' is a genus of trilobite from the middle Silurian, known from the United Kingdom. Etymology The name is derived from the genus ''Acaste'' and the Ancient Greek κεφαλή (kephalē) "head", indicating the headshield is similar to ''Acaste''. Taxonomy ''Acastocephala'' may contain the ancestor of '' Acastava''. Distribution * ''A. macrops'' occurs in the Middle Silurian of the United Kingdom (Wenlock Shale, Malvern, Worcestershire; Wenlock Limestone, Pen-y-Lan, Cardiff, and Dudley and Ludlow, Ledbury Ledbury is a market town and civil parish in the county of Herefordshire, England, lying east of Hereford, and west of the Malvern Hills. It has a significant number of timber-framed structures, in particular along Church Lane and High Street ..., Hereford). * ''A. dudleyensis'' has been found in the Middle Silurian of the United Kingdom (Wenlock Limestone, Wren's Nest, Dudley, Worcestershire). References External links Wenlock Trilobite ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acastidae
Acastidae is a family of trilobites in the order Phacopida, suborder Phacopina The Phacopina comprise a suborder of the trilobite order Phacopida. Species belonging to the Phacopina lived from the Lower Ordovician ( Tremadocian) through the end of the Upper Devonian (Famennian).Moore, R.C. (ed.). Treatise on Invertebrate Pal ..., superfamily Acastoidea, containing the following genera: References Acastoidea Trilobite families {{Phacopida-stub ... [...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] |
Acastava
''Acastava'' is an extinct genus of trilobite in the order Phacopida, from the upper Pragian (''A. atavus'') to Emsian period (both other species listed) of the Devonian The Devonian ( ) is a geologic period and system of the Paleozoic era, spanning 60.3 million years from the end of the Silurian, million years ago (Mya), to the beginning of the Carboniferous, Mya. It is named after Devon, England, whe .... References External links ''Acastava''at the Paleobiology Database Acastidae Devonian trilobites Fossils of Poland Fossil taxa described in 1954 {{phacopida-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fossils Of Great Britain
A fossil (from Classical Latin , ) is any preserved remains, impression, or trace of any once-living thing from a past geological age. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserved in amber, hair, petrified wood and DNA remnants. The totality of fossils is known as the ''fossil record''. Paleontology is the study of fossils: their age, method of formation, and evolutionary significance. Specimens are usually considered to be fossils if they are over 10,000 years old. The oldest fossils are around 3.48 billion years old to 4.1 billion years old. Early edition, published online before print. The observation in the 19th century that certain fossils were associated with certain rock strata led to the recognition of a geological timescale and the relative ages of different fossils. The development of radiometric dating techniques in the early 20th century allowed scientists to quantitatively measure the absolu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Silurian Trilobites Of Europe
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 th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wren's Nest
The Wren's Nest is a geological Site of Special Scientific Interest in the Dudley Metropolitan Borough, north west of the town centre of Dudley, in the West Midlands of England. It is one of the most important geological locations in Britain. It is also a Local Nature Reserve, a national nature reserve (NNR) and Scheduled Ancient Monument. The site is home to a number of species of birds and locally rare flora, such as ''Scabiosa columbaria'' (small scabious), milkwort and quaking grass. The caverns are also a nationally important hibernation site for seven different species of bat. The Wren's Nest National Nature Reserve Ancient history The Wren's Nest National Nature Reserve is world-famous geologically for its well-preserved Silurian coral reef fossils. Considered the most diverse and abundant fossil site in the British Isles, more than 700 types of fossil have been found at the site, 86 of which are unique to the location, including ''Calymene blumenbachii'', a trilobi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ledbury
Ledbury is a market town and civil parish in the county of Herefordshire, England, lying east of Hereford, and west of the Malvern Hills. It has a significant number of timber-framed structures, in particular along Church Lane and High Street. One of the most outstanding is Ledbury Market Hall, built in 1617, located in the town centre. Other notable buildings include the parish church of St. Michael and All Angels, the Painted Room (containing sixteenth-century frescoes), the Old Grammar School, the Barrett-Browning memorial clock tower (designed by Brightwen Binyon and opened in 1896 to house the library until 2015), nearby Eastnor Castle and the St. Katherine's Hospital site. Founded , this is a rare surviving example of a hospital complex, with hall, chapel, a Master's House (fully restored and opened in March 2015 to house the Library), almshouses and a timber-framed barn. History Ledbury is a borough whose origins date to around AD 690. In the Domesday Book it was recor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dudley
Dudley is a large market town and administrative centre in the county of West Midlands, England, southeast of Wolverhampton and northwest of Birmingham. Historically an exclave of Worcestershire, the town is the administrative centre of the Metropolitan Borough of Dudley; in 2011 it had a population of 79,379. The Metropolitan Borough, which includes the towns of Stourbridge and Halesowen, had a population of 312,900. In 2014 the borough council named Dudley as the capital of the Black Country. Originally a market town, Dudley was one of the birthplaces of the Industrial Revolution and grew into an industrial centre in the 19th century with its iron, coal, and limestone industries before their decline and the relocation of its commercial centre to the nearby Merry Hill Shopping Centre in the 1980s. Tourist attractions include Dudley Zoo and Castle, the 12th century priory ruins, and the Black Country Living Museum. History Early history Dudley has a history dating back ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Penylan
Penylan is a district and Community (Wales), community in the east of Cardiff, the capital city of Wales, known for its Edwardian era period houses and spacious tree lined roads and avenue (landscape), avenues. Situated to both the north and south of the A48 road, A48 dual carriageway, it is one of the most affluent districts of Cardiff, although subdivision of the large Victorian period properties is starting to occur in the areas at the south end of the ward, mimicking the trend in neighbouring Plasnewydd. Penylan has a number of large parks, including the southern part of Roath Park, and is one of the greenest areas in Cardiff. It is served by Penylan Library. Penylan Synagogue was opened in 1955, and closed in 2003 when a new synagogue had been built in nearby Cyncoed Gardens. Governance Penylan is both an ward (politics), electoral ward, and a community (Wales), community of the City of Cardiff Council, City of Cardiff. There is no community council for the area. The wa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Malvern, Worcestershire
Malvern is a spa town and civil parish in Worcestershire, England. It lies at the foot of the Malvern Hills, a designated Area of Outstanding Natural Beauty. The centre of Malvern, Great Malvern, is a historic conservation area, which grew dramatically in Victorian times due to the natural mineral water springs in the vicinity, including Malvern Water. At the 2011 census it had a population of 29,626. It includes Great Malvern on the steep eastern flank of the Malvern Hills, as well as the former independent urban district of Malvern Link. Many of the major suburbs and settlements that comprise the town are separated by large tracts of open common land and fields, and together with smaller civil parishes adjoining the town's boundaries and the hills, the built up area is often referred to collectively as The Malverns. Archaeological evidence suggests that Bronze Age people had settled in the area around 1000 BC, although it is not known whether these settlements were permane ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wenlock Group
The Wenlock Group (Wenlockian), in geology, is the middle series of strata in the Silurian (Upper Silurian) of Great Britain. This group in the typical area in the Welsh border counties contains the following formations: Much Wenlock Limestone Formation, 90–300 ft.; Wenlock Shale, up to 1900 ft.; Woolhope or Barr Limestone and shale, 150 ft. Stratigraphy Woolhope Beds The Woolhope Beds consist mainly of shales which are generally calcareous and pass frequently into irregular nodular and lenticular limestone. In the Malvern Hills there is much shale at the base, and in places the limestone may be absent. These beds are best developed in Herefordshire; they appear also at May Hill in Gloucestershire and in Radnorshire. Common fossils are ''Phacops caudatus'', ''Encrinurus tuberculatus'', '' Orthis calligramma'', ''Atrypa reticularis'', and ''Orthoceras annulatum''. Wenlock Shales The Wenlock Shales are pale or dark-grey shales which extend through Coalbrookdal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acaste
Acaste (; Ancient Greek: Ἀκάστη) was the name of two figures in Greek mythology. * Acaste, one of the Oceanids. She was among the companions of Persephone when Persephone was abducted by Hades. * Acaste, the nurse of the daughters of king Adrastus of Argos.Parada, s.v. Acaste 2; Statius, ''Thebaid'1.529 Notes References * Hesiod, ''Theogony'', in ''The Homeric Hymns and Homerica with an English Translation by Hugh G. Evelyn-White'', Cambridge, Massachusetts, Harvard University Press; London, William Heinemann Ltd. 1914Online version at the Perseus Digital Library * ''Homeric Hymn'' 2 ''to Demeter'', in ''The Homeric Hymns and Homerica with an English Translation by Hugh G. Evelyn-White'', Cambridge, Massachusetts, Harvard University Press; London, William Heinemann Ltd. 1914Online version at the Perseus Digital Library * Parada, Carlos, ''Genealogical Guide to Greek Mythology'', Jonsered, Paul Åströms Förlag, 1993. . * Statius, ''Statius with an English Translation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
