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White Lias
The Lilstock Formation is a geologic formation in England. It preserves bivalve, insect and other invertebrate fossils, as well as fossil fish of '' Agkistracanthus mitgelensis'' and the basal theropod dinosaur '' Newtonsaurus cambrensis'' dating back to the Rhaetian of the Triassic period. White Lias The White lias is a rare, fine-grained form of limestone from the late Triassic period, occurring only in certain parts of Somerset and infrequently in Warwickshire. It gets the name ‘lias’ from the quarrymen's dialect for ‘layers’, referring to its natural state when quarried. White lias is part of the Langport Member of the Lilstock Formation, a multi-layered bed of stone formed from shale and limestone. At its base is a bone-bed yielding ancient marine, reptilian and ammonite fossils. White lias varies in colour from white-cream to pale grey and is traditionally used for building and flooring. Evidence of its use can be seen in manor houses, churches and cathedral ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Formation (stratigraphy)
A geological formation, or simply formation, is a body of rock having a consistent set of physical characteristics (lithology) that distinguishes it from adjacent bodies of rock, and which occupies a particular position in the layers of rock exposed in a geographical region (the stratigraphic column). It is the fundamental unit of lithostratigraphy, the study of strata or rock layers. A formation must be large enough that it can be mapped at the surface or traced in the subsurface. Formations are otherwise not defined by the thickness (geology), thickness of their rock strata, which can vary widely. They are usually, but not universally, tabular in form. They may consist of a single lithology (rock type), or of alternating beds of two or more lithologies, or even a heterogeneous mixture of lithologies, so long as this distinguishes them from adjacent bodies of rock. The concept of a geologic formation goes back to the beginnings of modern scientific geology. The term was used by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Agkistracanthus
''Agkistracanthus'' is an extinct genus of Chimaera from the Mesozoic era. It currently contains a single species, ''A. mitgelensis''. It is known from the Rhaetian to Hettangian epochs, spanning the transition from the Triassic to Jurassic period. Fossils from this genus are known from Switzerland, Austria, and Britain Britain most often refers to: * The United Kingdom, a sovereign state in Europe comprising the island of Great Britain, the north-eastern part of the island of Ireland and many smaller islands * Great Britain, the largest island in the United King .... It is known mostly from isolated and fragmentary material, including fin spines as well as palantine, symphyseal, and mandibular structures.Duffin, C. J., & Milan, J. (2017). A new myriacanthid holocephalian from the Early Jurassic of Denmark. ''Bulletin of the Geological Society of Denmark'', ''65'', 161-170. References {{Taxonbar, from=Q99775221 Chimaeriformes Fossils of Austria Prehistoric cartilagino ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blue Lias
The Blue Lias is a geological formation in southern, eastern and western England and parts of South Wales, part of the Lias Group. The Blue Lias consists of a sequence of limestone and shale layers, laid down in latest Triassic and early Jurassic times, between 195 and 200 million years ago. The Blue Lias is famous for its fossils, especially ammonites. Its age corresponds to the Rhaetian to lower Sinemurian stages of the geological timescale, thus fully including the Hettangian stage. It is the lowest of the three divisions of the Lower Jurassic period and, as such, is also given the name ''Lower Lias''. Stratigraphically it can be subdivided into three members: the Wilmcote Limestone, Saltford Shale and Rugby Limestone. Lithology and facies The Blue Lias comprises decimetre scale alternations of argillaceous limestone and mudstone. These alternations are caused by short-term climatic variations during the Early Jurassic attributed to orbital forcing (Milankovitch cycles). Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wincanton
Wincanton ( or ) is a small town and electoral ward in South Somerset, southwest England. The town lies off the A303 road, a main route between London and South West England, and has some light industry. The town and electoral ward has a population of 5,272. History Windmill Hill was the site of a Bronze Age Beaker culture burial, and contemporary artefacts have been found on the Selwood Ridge. Prior to the Norman Conquest Wincanton was frequently the scene of battles between the Britons, Danes and Saxons. During the reign of Edmund Ironside, the English, under his command, defeated the Danes, forcing them to leave England. In the Domesday Book the name of the town was spelled as "Wincaleton", thought to mean "Pleasant town on the Cale". Cockroad Wood Castle, which is now in the parish of Charlton Musgrove, was a motte and bailey castle, probably built after the Norman conquest of England of 1066. The castle sits close to the contemporary Norman castles of Ballands and Castle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Langport
Langport is a small town and civil parish in Somerset, England, west of Somerton in the South Somerset district. The parish, which covers only part of the town, has a population of 1,081. Langport is contiguous with Huish Episcopi, a separate parish that includes much of the town's outskirts. History Langport (old forms are "Langeberga" and "Langeport") consists of two parts, one on the hill and one by the River Parrett. The former owed its origin to its defensible position, and the latter its growth to its facilities for trade on the chief river of Somerset. Eilert Ekwall translates it as "long town" or "long market". Its name looks like Anglo-Saxon for "long port", but it may be "long market place" that could have been on the causeway that is now Bow Street. Many of the houses in Bow Street tilt backwards due to settlement of the land behind the causeway. It is speculated that Langport is the place mentioned in old Welsh sources as "Llongborth" = "Ship-port", the site of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radstock
Radstock is a town and civil parish on the northern slope of the Mendip Hills in Somerset, England, about south-west of Bath and north-west of Frome. It is within the area of the unitary authority of Bath and North East Somerset. The Radstock built-up area had a population of 9,419 at the 2011 Census. Radstock has been settled since the Iron Age, and its importance grew after the construction of the Fosse Way, a Roman road. The town grew after 1763, when coal was discovered in the area. Large numbers of mines opened during the 19th century, including several owned by the Waldegrave family, who had been Lords of the Manor since the Civil War. Admiral Lord Radstock, brother of George, fourth Earl Waldegrave, took the town's name as his title when created a Baron. The spoil heap of Writhlington colliery is now the Writhlington Site of Special Scientific Interest, which includes 3,000 tons of Upper Carboniferous spoil from which more than 1,400 insect fossil specim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Midsomer Norton
Midsomer Norton is a town near the Mendip Hills in Bath and North East Somerset, England, south-west of Bath, north-east of Wells, north-west of Frome, west of Trowbridge and south-east of Bristol. It has a population of around 13,000. Along with Radstock and Westfield it used to be part of the conurbation and large civil parish of Norton Radstock, but is now a town council in its own right. It is also part of the unitary authority of Bath and North East Somerset. Midsomer Norton is characterised by the River Somer which runs the length of the town centre, the river itself was regenerated with new plant life during the summer of 2012 in a bid to improve the aesthetics of the town centre. The Town has a long history which can be seen through a number of early churches which remain, but really started to grow and become a transport hub with the development of the Somerset coalfield. For many years the coalmines provided employment for local men until they ceased operati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ammonite
Ammonoids are a group of extinct marine mollusc animals in the subclass Ammonoidea of the class Cephalopoda. These molluscs, commonly referred to as ammonites, are more closely related to living coleoids (i.e., octopuses, squid and cuttlefish) than they are to shelled nautiloids such as the living ''Nautilus'' species. The earliest ammonites appeared during the Devonian, with the last species vanishing during the Cretaceous–Paleogene extinction event. Ammonites are excellent index fossils, and linking the rock layer in which a particular species or genus is found to specific geologic time periods is often possible. Their fossil shells usually take the form of planispirals, although some helically spiraled and nonspiraled forms (known as heteromorphs) have been found. The name "ammonite", from which the scientific term is derived, was inspired by the spiral shape of their fossilized shells, which somewhat resemble tightly coiled rams' horns. Pliny the Elder ( 79 AD near Pomp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shale
Shale is a fine-grained, clastic sedimentary rock formed from mud that is a mix of flakes of clay minerals (hydrous aluminium phyllosilicates, e.g. kaolin, Al2 Si2 O5( OH)4) and tiny fragments (silt-sized particles) of other minerals, especially quartz and calcite.Blatt, Harvey and Robert J. Tracy (1996) ''Petrology: Igneous, Sedimentary and Metamorphic'', 2nd ed., Freeman, pp. 281–292 Shale is characterized by its tendency to split into thin layers ( laminae) less than one centimeter in thickness. This property is called '' fissility''. Shale is the most common sedimentary rock. The term ''shale'' is sometimes applied more broadly, as essentially a synonym for mudrock, rather than in the more narrow sense of clay-rich fissile mudrock. Texture Shale typically exhibits varying degrees of fissility. Because of the parallel orientation of clay mineral flakes in shale, it breaks into thin layers, often splintery and usually parallel to the otherwise indistinguishable beddin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Warwickshire
Warwickshire (; abbreviated Warks) is a county in the West Midlands region of England. The county town is Warwick, and the largest town is Nuneaton. The county is famous for being the birthplace of William Shakespeare at Stratford-upon-Avon and Victorian novelist George Eliot, (born Mary Ann Evans), at Nuneaton. Other significant towns include Rugby, Leamington Spa, Bedworth, Kenilworth and Atherstone. The county offers a mix of historic towns and large rural areas. It is a popular destination for international and domestic tourists to explore both medieval and more recent history. The county is divided into five districts of North Warwickshire, Nuneaton and Bedworth, Rugby, Warwick and Stratford-on-Avon. The current county boundaries were set in 1974 by the Local Government Act 1972. The historic county boundaries included Coventry, Sutton Coldfield and Solihull, as well as much of Birmingham and Tamworth. Geography Warwickshire is bordered by Leicestershire to the nort ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Somerset
( en, All The People of Somerset) , locator_map = , coordinates = , region = South West England , established_date = Ancient , established_by = , preceded_by = , origin = , lord_lieutenant_office =Lord Lieutenant of Somerset , lord_lieutenant_name = Mohammed Saddiq , high_sheriff_office =High Sheriff of Somerset , high_sheriff_name = Mrs Mary-Clare Rodwell (2020–21) , area_total_km2 = 4171 , area_total_rank = 7th , ethnicity = 98.5% White , county_council = , unitary_council = , government = , joint_committees = , admin_hq = Taunton , area_council_km2 = 3451 , area_council_rank = 10th , iso_code = GB-SOM , ons_code = 40 , gss_code = , nuts_code = UKK23 , districts_map = , districts_list = County council area: , MPs = * Rebecca Pow (C) * Wera Hobhouse ( LD) * Liam Fox (C) * David Warburton (C) * Marcus Fysh (C) * Ian Liddell-Grainger (C) * James Heappey (C) * Jacob Rees-Mogg (C) * John Penrose (C) , police = Avon and Somerset Police ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fossilworks
Fossilworks is a portal which provides query, download, and analysis tools to facilitate access to the Paleobiology Database The Paleobiology Database is an online resource for information on the distribution and classification of fossil animals, plants, and microorganisms. History The Paleobiology Database (PBDB) originated in the NCEAS-funded Phanerozoic Marine Pale ..., a large relational database assembled by hundreds of paleontologists from around the world. History Fossilworks was created in 1998 by John Alroy and is housed at Macquarie University. It includes many analysis and data visualization tools formerly included in the Paleobiology Database.{{cite web, title=Frequently asked questions, url=http://www.fossilworks.org/cgi-bin/bridge.pl?page=FAQ, publisher=Fossilworks, access-date=17 December 2021 References {{Reflist External links {{Wikidata property, P842 * [Baidu] |
