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Gilwern Hill, Powys
Gilwern Hill is a hill about 3 mi / 5 km southeast of Llandrindod Wells in the county of Powys, Wales. Geology The hill is composed from a range of lower and middle Ordovician volcaniclastic rocks which form a part of the Builth Inlier. Palaeontologists Pete Lawrance and Brian Beveridge have spent 30 years examining fossils from a privately owned limestone quarry on the hill. Amongst fossils so far identified at this location are the trilobites Meadowtownella, Bettonolithus, Protolloydolithus and Anebolithus together with Conulariida, Iocrinus, Clonograptus and starfish Stone rows There are two prehistoric stone row A stone row or stone alignment is a linear arrangement of upright, parallel megalithic standing stones set at intervals along a common axis or series of axes, usually dating from the later Neolithic or Bronze Age.Power (1997), p.23 Rows may be in ...s at the southern end of the hill, each with a large stone, more than 2m high, at one end. Referenc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gilwern Hill In Autumn - Geograph
Gilwern is a village within the Brecon Beacons National Park in Monmouthshire, Wales. Historically in Brecknockshire, it extends to either side of the River Clydach on the south side of the Usk valley. Its position beside the Monmouthshire and Brecon Canal led to it being an important industrial centre at one time. Location Gilwern is a village historically in Breconshire now in Monmouthshire about west of Abergavenny, close to where the A40 trunk road and the A465 Heads of the Valleys road meet. The River Usk and the Monmouthshire and Brecon Canal are close to the village. Gilwern Hill lies to the south of the village. It is partly tree-clad and has a mast on top. The name of the village translates from the Welsh ''Y Gilwern'' (from ''cil-gwern'') as "the recess (or bend) of the alders", probably a reference to its position at the point where the Clydach Gorge opens out into the Usk Valley and the River Clydach flows into a sharp bend in the River Usk. The village is w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Protolloydolithus
''Protolloydolithus'' is a genus of trinucleid trilobites found in Ordovician rocks in Gilwern Hill, Powys, Wales. References * The World Encyclopedia of Fossils& Fossil-Collecting, ''Steve Parker'' Protolloydolithus fact file Trinucleidae Asaphida genera Ordovician trilobites of Europe {{Asaphida-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paleontological Sites Of Europe
Paleontology (), also spelled palaeontology or palæontology, is the scientific study of life that existed prior to, and sometimes including, the start of the Holocene epoch (roughly 11,700 years before present). It includes the study of fossils to classify organisms and study their interactions with each other and their environments (their paleoecology). Paleontological observations have been documented as far back as the 5th century BC. The science became established in the 18th century as a result of Georges Cuvier's work on comparative anatomy, and developed rapidly in the 19th century. The term itself originates from Greek (, "old, ancient"), (, (gen. ), "being, creature"), and (, "speech, thought, study"). Paleontology lies on the border between biology and geology, but differs from archaeology in that it excludes the study of anatomically modern humans. It now uses techniques drawn from a wide range of sciences, including biochemistry, mathematics, and engineering. Us ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stone Row
A stone row or stone alignment is a linear arrangement of upright, parallel megalithic standing stones set at intervals along a common axis or series of axes, usually dating from the later Neolithic or Bronze Age.Power (1997), p.23 Rows may be individual or grouped, and three or more stones aligned can constitute a stone row. Description Stone rows can be few metres or several kilometres in length and made from stones that can be as tall as 2m, although 1m high stones are more common. The terminals of many rows have the largest stones and other megalithic features are sometimes sited at the ends, especially burial cairns. The stones are placed at intervals and may vary in height along the sequence, to provide a graduated appearance, though it is not known whether this was done deliberately. Stone rows were erected by the later Neolithic and Bronze Age peoples in the British Isles, parts of Scandinavia and northern France. The most famous example is the Carnac stones, a comp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Starfish
Starfish or sea stars are star-shaped echinoderms belonging to the class Asteroidea (). Common usage frequently finds these names being also applied to ophiuroids, which are correctly referred to as brittle stars or basket stars. Starfish are also known as asteroids due to being in the class Asteroidea. About 1,900 species of starfish live on the seabed in all the world's oceans, from warm, tropical zones to frigid, polar regions. They are found from the intertidal zone down to abyssal depths, at below the surface. Starfish are marine invertebrates. They typically have a central disc and usually five arms, though some species have a larger number of arms. The aboral or upper surface may be smooth, granular or spiny, and is covered with overlapping plates. Many species are brightly coloured in various shades of red or orange, while others are blue, grey or brown. Starfish have tube feet operated by a hydraulic system and a mouth at the centre of the oral or lower surface. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clonograptus
''Clonograptus'' is a genus of graptolites. Groups of these animals were connected by stalklike structures to a central region. Species of ''Clonograptus'' are zone fossils, and can be used to find the precise age of Ordovician rocks. References Graptolite genera Paleozoic life of New Brunswick Paleozoic life of Newfoundland and Labrador Paleozoic life of the Northwest Territories {{Hemichordate-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iocrinus
''Iocrinus'' is an extinct genus of crinoid (sea lilies and feather stars). It is an early Form (zoology), form of crinoid, from the Ordovician Rock (geology), rock of North America, England, and Gilwern Hill, Powys in Wales. Selected species * ''Iocrinus brithdirensis'' * ''Iocrinus crassus'' * ''Iocrinus pauli'' * ''Iocrinus shelvensis'' * ''Iocrinus similis'' * ''Iocrinus subcrassus'' * ''Iocrinus trentonensis'' * ''Iocrinus whitteryi'' References Paleobiology Database entry''Iocrinus'' in the Ordovician of England and Wales * Stuart M. Kelly, ''Functional Morphology and Evolution of Iocrinus: An Ordovician Disparid Inadunate Crinoid'', Indiana University, 1978. Iocrinidae Ordovician crinoids Ordovician echinoderms of Europe Ordovician echinoderms of North America Paleozoic life of Ontario Verulam Formation {{Paleo-crinoidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Conulariida
Conulariida is a poorly understood fossil group that has possible affinity with the Cnidaria. Their exact position as a taxon of extinct medusozoan cnidarians is highly speculative. Members of the Conulariida are commonly referred to as conulariids and appear in the fossil record from the latest parts of the Ediacaran period up until the Triassic. Structure The conulariids are fossils preserved as shell-like structures made up of rows of calcium phosphate rods, resembling an ice-cream cone with fourfold symmetry, usually four prominently-grooved corners. New rods were added as the organism grew in length; the rod-based growth falsely gives the fossils a segmented appearance. Exceptional soft-part preservation has revealed that soft tentacles protruded from the wider end of the cone, and a holdfast from the pointed end attached the organisms to hard substrate. The prevailing reconstruction of the organism has it look superficially like a sea anemone sitting inside an angular, h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anebolithus
''Anebolithus'' is a genus of trilobites found in Gilwern Hill, Powys, Wales Wales ( cy, Cymru ) is a Countries of the United Kingdom, country that is part of the United Kingdom. It is bordered by England to the Wales–England border, east, the Irish Sea to the north and west, the Celtic Sea to the south west and the .... ''Anebolithus'', like other trinucleids, was blind. References Trinucleidae Asaphida genera Fossils of Great Britain Fossils of Wales Powys {{Wales-stub Paleontology in Wales ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bettonolithus
Bettonolithus is a genus of trilobites of the Order Asaphida. It is in the family Trinucleidae. Fossil specimens have been found in the Lower Ordovician rocks of Gilwern Hill in Powys, Wales. Anatomical evidence suggests this Trilobite sifted organic matter on the seabed The seabed (also known as the seafloor, sea floor, ocean floor, and ocean bottom) is the bottom of the ocean. All floors of the ocean are known as 'seabeds'. The structure of the seabed of the global ocean is governed by plate tectonics. Most of .... References Trinucleidae Asaphida genera Fossils of Great Britain Ordovician trilobites {{Asaphida-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Llandrindod Wells
Llandrindod Wells (, ; cy, Llandrindod, /ɬanˈdɾindɔd/ "Trinity Parish"), sometimes known colloquially as Llandod, is a town and community in Powys, within the historic boundaries of Radnorshire, Wales. It serves as the seat of Powys County Council and thus the administrative centre of Powys. It was developed as a spa town in the 19th century, with a boom in the late 20th century as a centre of local government. Before the 1860s the site of the town was common land in Llanfihangel Cefnllys parish. Llandrindod Wells is the fifth largest town in Powys and the largest in Radnorshire. History During the mid-18th century, the 'healing qualities' of the local spring waters attracted visitors to the area resulting in an economic boom with the building of a 'splendid' hotel at Llandrindod Hall. A period of relative decline during the late 18th and early 19th centuries was reversed with the construction of the Heart of Wales line making Llandrindod accessible from south Wal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Meadowtownella
''Meadowtownella'' is a rare genus of odontopleurid trilobite found in Ordovician rocks. It is similar to '' Acidaspis cincinnatiensis'' but without the occipital spine. Some species have been found in Gilwern Hill in Wales, but tend only to be found in the lower portions of the Kope Formation in Ohio. They are also found in Trenton Group rock units in New York State, Ontario and Quebec Quebec ( ; )According to the Canadian government, ''Québec'' (with the acute accent) is the official name in Canadian French and ''Quebec'' (without the accent) is the province's official name in Canadian English is one of the thirtee .... References External links Image of Meadowtownella on Flickr Odontopleuridae Odontopleurida genera Ordovician trilobites Trilobites of Europe Trilobites of North America Paleozoic life of the Northwest Territories {{Odontopleurida-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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