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104 relations: Acanthodii, Adam Sedgwick, Arthropod, Avalonia, Baltica, Baragwanathia, Bohemia, Brachiopod, Bryophyte, Bryozoa, Cadastre, Caledonian orogeny, Cambrian, Carmarthenshire, Celts, Cesare Emiliani, Charles Lapworth, Continental drift, Cooksonia, Coquina, Coral, Crinoid, Czech Republic, Detritivore, Devonian, Earth, Edward Forbes, Eohostimella, Epoch (geology), Equator, Estonia, Euramerica, Eurypterid, Eurypterus, Evaporite, Food web, Fossil, Geologic time scale, Geological period, Geology, Geology of Gotland, Gill, Glacier, Gondwana, Greenhouse, Hederellid, Hirnantian, Hovedøya, Iapetus Ocean, International Commission on Stratigraphy, ..., Invertebrate, Ireviken event, Jaw, Joachim Barrande, Latin, Lau event, Laurentia, Leech, Life, Llandovery, Ludford, Shropshire, Ludlow, Millipede, Mollusca, Moss, Mudstone, Mulde event, Myriapoda, New York (state), New York Botanical Garden, Norway, Ordovician, Ordovician–Silurian extinction events, Osteichthyes, Paleo-Tethys Ocean, Panthalassa, Pneumodesmus, Poraspis, Prague, Proto-Tethys Ocean, Rheic Ocean, Rock (geology), Roderick Murchison, Saaremaa, Sandstone, Scotland, Shropshire, Silures, South Pole, Springer Science+Business Media, Stage (stratigraphy), Stratum, Supercontinent, Teays River, Tentaculita, Trigonotarbida, Trilobite, Unconformity, Ural Ocean, Vascular plant, Wales, Wenlock (Silurian), Wenlock Edge, Year. Expand index (54 more) »
Acanthodii
Acanthodii or acanthodians (sometimes called spiny sharks) is a paraphyletic class of extinct teleostome fish, sharing features with both bony fish and cartilaginous fish.
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Adam Sedgwick
Adam Sedgwick (22 March 1785 – 27 January 1873) was a British priest and geologist, one of the founders of modern geology.
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Arthropod
An arthropod (from Greek ἄρθρον arthron, "joint" and πούς pous, "foot") is an invertebrate animal having an exoskeleton (external skeleton), a segmented body, and paired jointed appendages.
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Avalonia
Avalonia was a microcontinent in the Paleozoic era.
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Baltica
Baltica is a paleocontinent that formed in the Paleoproterozoic and now constitutes northwestern Eurasia, or Europe north of the Trans-European Suture Zone and west of the Ural Mountains.
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Baragwanathia
Baragwanathia is a genus of extinct plants of the division Lycopodiophyta of Late Silurian to Early Devonian age, fossils of which have been found in Australia, Canada, China and Czechia.
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Bohemia
Bohemia (Čechy;; Czechy; Bohême; Bohemia; Boemia) is the westernmost and largest historical region of the Czech lands in the present-day Czech Republic.
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Brachiopod
Brachiopods, phylum Brachiopoda, are a group of lophotrochozoan animals that have hard "valves" (shells) on the upper and lower surfaces, unlike the left and right arrangement in bivalve molluscs.
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Bryophyte
Bryophytes are an informal group consisting of three divisions of non-vascular land plants (embryophytes): the liverworts, hornworts and mosses.
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Bryozoa
Bryozoa (also known as the Polyzoa, Ectoprocta or commonly as moss animals) are a phylum of aquatic invertebrate animals.
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Cadastre
A cadastre (also spelled cadaster) is a comprehensive land recording of the real estate or real property's metes-and-bounds of a country.
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Caledonian orogeny
The Caledonian orogeny was a mountain building era recorded in the northern parts of Ireland and Britain, the Scandinavian Mountains, Svalbard, eastern Greenland and parts of north-central Europe.
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Cambrian
The Cambrian Period was the first geological period of the Paleozoic Era, and of the Phanerozoic Eon.
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Carmarthenshire
Carmarthenshire (Sir Gaerfyrddin; or informally Sir Gâr) is a unitary authority in the southwest of Wales and is the largest of the thirteen historic counties of Wales.
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Celts
The Celts (see pronunciation of ''Celt'' for different usages) were an Indo-European people in Iron Age and Medieval Europe who spoke Celtic languages and had cultural similarities, although the relationship between ethnic, linguistic and cultural factors in the Celtic world remains uncertain and controversial.
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Cesare Emiliani
Cesare Emiliani (8 December 1922 – 20 July 1995) was an Italian-American scientist, geologist, micropaleontologist, and the founder of paleoceanography, developing the timescale of marine isotope stages, which despite modifications remains in use today.
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Charles Lapworth
Prof Charles Lapworth FRS LLD FGS (20 September 1842 – 13 March 1920) was an English geologist who pioneered faunal analysis using index fossils and identified the Ordovician period.
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Continental drift
Continental drift is the movement of the Earth's continents relative to each other, thus appearing to "drift" across the ocean bed.
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Cooksonia
Cooksonia is an extinct grouping of primitive land plants.
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Coquina
Coquina is a sedimentary rock that is composed either wholly or almost entirely of the transported, abraded, and mechanically-sorted fragments of the shells of molluscs, trilobites, brachiopods, or other invertebrates.
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Coral
Corals are marine invertebrates in the class Anthozoa of phylum Cnidaria.
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Crinoid
Crinoids are marine animals that make up the class Crinoidea of the echinoderms (phylum Echinodermata).
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Czech Republic
The Czech Republic (Česká republika), also known by its short-form name Czechia (Česko), is a landlocked country in Central Europe bordered by Germany to the west, Austria to the south, Slovakia to the east and Poland to the northeast.
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Detritivore
Detritivores, also known as detrivores, detritophages, detritus feeders, or detritus eaters, are heterotrophs that obtain nutrients by consuming detritus (decomposing plant and animal parts as well as feces).
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Devonian
The Devonian is a geologic period and system of the Paleozoic, spanning 60 million years from the end of the Silurian, million years ago (Mya), to the beginning of the Carboniferous, Mya.
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Earth
Earth is the third planet from the Sun and the only astronomical object known to harbor life.
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Edward Forbes
Professor Edward Forbes FRS, FGS (12 February 1815 – 18 November 1854) was a Manx naturalist.
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Eohostimella
Eohostimella heathana is an early, probably terrestrial, "plant" known from compression fossils of Early Silurian age (Llandovery, around). The chemistry of its fossils is similar to that of fossilised vascular plants, rather than algae.
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Epoch (geology)
In geochronology, an epoch is a subdivision of the geologic timescale that is longer than an age but shorter than a period.
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Equator
An equator of a rotating spheroid (such as a planet) is its zeroth circle of latitude (parallel).
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Estonia
Estonia (Eesti), officially the Republic of Estonia (Eesti Vabariik), is a sovereign state in Northern Europe.
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Euramerica
Euramerica (also known as Laurussia – not to be confused with Laurasia, – the Old Red Continent or the Old Red Sandstone Continent) was a minor supercontinent created in the Devonian as the result of a collision between the Laurentian, Baltica, and Avalonia cratons during the Caledonian orogeny, about 410 million years ago.
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Eurypterid
Eurypterids, often informally called sea scorpions, are an extinct group of arthropods related to arachnids that include the largest known arthropods to have ever lived.
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Eurypterus
Eurypterus is an extinct genus of eurypterid, a group of organisms commonly called "sea scorpions".
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Evaporite
Evaporite is the term for a water-soluble mineral sediment that results from concentration and crystallization by evaporation from an aqueous solution.
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Food web
A food web (or food cycle) is a natural interconnection of food chains and a graphical representation (usually an image) of what-eats-what in an ecological community.
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Fossil
A fossil (from Classical Latin fossilis; literally, "obtained by digging") is any preserved remains, impression, or trace of any once-living thing from a past geological age.
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Geologic time scale
The geologic time scale (GTS) is a system of chronological dating that relates geological strata (stratigraphy) to time.
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Geological period
A geological period is one of several subdivisions of geologic time enabling cross-referencing of rocks and geologic events from place to place.
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Geology
Geology (from the Ancient Greek γῆ, gē, i.e. "earth" and -λoγία, -logia, i.e. "study of, discourse") is an earth science concerned with the solid Earth, the rocks of which it is composed, and the processes by which they change over time.
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Geology of Gotland
Gotland is made up of a sequence of sedimentary rocks of a Silurian age, dipping to the south-east.
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Gill
A gill is a respiratory organ found in many aquatic organisms that extracts dissolved oxygen from water and excretes carbon dioxide.
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Glacier
A glacier is a persistent body of dense ice that is constantly moving under its own weight; it forms where the accumulation of snow exceeds its ablation (melting and sublimation) over many years, often centuries.
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Gondwana
Gondwana, or Gondwanaland, was a supercontinent that existed from the Neoproterozoic (about 550 million years ago) until the Carboniferous (about 320 million years ago).
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Greenhouse
A greenhouse (also called a glasshouse) is a structure with walls and roof made mainly of transparent material, such as glass, in which plants requiring regulated climatic conditions are grown.
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Hederellid
Hederellids are extinct colonial animals with calcitic tubular branching exoskeletons.
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Hirnantian
The Hirnantian is the seventh and final internationally recognized stage of the Ordovician Period of the Paleozoic Era.
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Hovedøya
Hovedøya is one of several small islands off the coast of Oslo, Norway in the Oslofjord.
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Iapetus Ocean
The Iapetus Ocean was an ocean that existed in the late Neoproterozoic and early Paleozoic eras of the geologic timescale (between 600 and 400 million years ago).
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International Commission on Stratigraphy
The International Commission on Stratigraphy (ICS), sometimes referred to by the unofficial name "International Stratigraphic Commission" is a daughter or major subcommittee grade scientific daughter organization that concerns itself with stratigraphy, geological, and geochronological matters on a global scale.
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Invertebrate
Invertebrates are animals that neither possess nor develop a vertebral column (commonly known as a backbone or spine), derived from the notochord.
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Ireviken event
The Ireviken event was the first of three relatively minor extinction events (the Ireviken, Mulde, and Lau events) during the Silurian period.
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Jaw
The jaw is any opposable articulated structure at the entrance of the mouth, typically used for grasping and manipulating food.
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Joachim Barrande
Joachim Barrande (11 August 1799 – 5 October 1883) was a French geologist and palaeontologist.
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Latin
Latin (Latin: lingua latīna) is a classical language belonging to the Italic branch of the Indo-European languages.
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Lau event
The Lau event was the last of three relatively minor mass extinctions (the Ireviken, Mulde, and Lau events) during the Silurian period.
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Laurentia
Laurentia or the North American Craton is a large continental craton that forms the ancient geological core of the North American continent.
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Leech
Leeches are segmented parasitic or predatory worm-like animals that belong to the phylum Annelida and comprise the subclass Hirudinea.
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Life
Life is a characteristic that distinguishes physical entities that do have biological processes, such as signaling and self-sustaining processes, from those that do not, either because such functions have ceased, or because they never had such functions and are classified as inanimate.
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Llandovery
Llandovery (Llanymddyfri) is a community and market town in Carmarthenshire, Wales.
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Ludford, Shropshire
Ludford is a small village and civil parish in south Shropshire, England.
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Ludlow
Ludlow is a market town in Shropshire, England, south of Shrewsbury and north of Hereford via the main A49 road, which bypasses the town.
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Millipede
Millipedes are a group of arthropods that are characterised by having two pairs of jointed legs on most body segments; they are known scientifically as the class Diplopoda, the name being derived from this feature.
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Mollusca
Mollusca is a large phylum of invertebrate animals whose members are known as molluscs or mollusksThe formerly dominant spelling mollusk is still used in the U.S. — see the reasons given in Gary Rosenberg's.
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Moss
Mosses are small flowerless plants that typically grow in dense green clumps or mats, often in damp or shady locations.
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Mudstone
Mudstone, a type of mudrock, is a fine-grained sedimentary rock whose original constituents were clays or muds.
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Mulde event
The Mulde event was an anoxic event, and marked the second of three relatively minor mass extinctions (the Ireviken, Mulde, and Lau events) during the Silurian period.
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Myriapoda
Myriapoda is a subphylum of arthropods containing millipedes, centipedes, and others.
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New York (state)
New York is a state in the northeastern United States.
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New York Botanical Garden
The New York Botanical Garden (NYBG) is a botanical garden and National Historic Landmark located in the Bronx, New York City.
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Norway
Norway (Norwegian: (Bokmål) or (Nynorsk); Norga), officially the Kingdom of Norway, is a unitary sovereign state whose territory comprises the western portion of the Scandinavian Peninsula plus the remote island of Jan Mayen and the archipelago of Svalbard.
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Ordovician
The Ordovician is a geologic period and system, the second of six periods of the Paleozoic Era.
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Ordovician–Silurian extinction events
The Ordovician–Silurian extinction events, when combined, are the second-largest of the five major extinction events in Earth's history in terms of percentage of genera that became extinct.
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Osteichthyes
Osteichthyes, popularly referred to as the bony fish, is a diverse taxonomic group of fish that have skeletons primarily composed of bone tissue, as opposed to cartilage.
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Paleo-Tethys Ocean
The Paleo-Tethys or Palaeo-Tethys Ocean was an ocean located along the northern margin of the paleocontinent Gondwana that started to open during the Middle Cambrian, grew throughout the Paleozoic, and finally closed during the Late Triassic; existing for about 400 million years.
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Panthalassa
Panthalassa, also known as the Panthalassic or Panthalassan Ocean, (from Greek πᾶν "all" and θάλασσα "sea"), was the superocean that surrounded the supercontinent Pangaea.
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Pneumodesmus
Pneumodesmus newmani is a species of millipede that lived in the Paleozoic.
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Poraspis
Poraspis is an extinct genus of heterostracan.
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Prague
Prague (Praha, Prag) is the capital and largest city in the Czech Republic, the 14th largest city in the European Union and also the historical capital of Bohemia.
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Proto-Tethys Ocean
The Proto-Tethys Ocean was an ancient ocean that existed from the latest Ediacaran to the Carboniferous (550–330 Ma).
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Rheic Ocean
The Rheic Ocean was an ocean which separated two major palaeocontinents, Gondwana and Laurussia (Laurentia-Baltica-Avalonia).
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Rock (geology)
Rock or stone is a natural substance, a solid aggregate of one or more minerals or mineraloids.
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Roderick Murchison
Roderick Impey Murchison, 1st Baronet KCB DCL FRS FRSE FLS PRGS PBA MRIA (22 February 1792 – 22 October 1871) was a Scottish geologist who first described and investigated the Silurian system.
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Saaremaa
Saaremaa (Danish: Øsel; English (esp. traditionally): Osel; Finnish: Saarenmaa; Swedish & German: Ösel) is the largest island in Estonia, measuring.
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Sandstone
Sandstone is a clastic sedimentary rock composed mainly of sand-sized (0.0625 to 2 mm) mineral particles or rock fragments.
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Scotland
Scotland (Alba) is a country that is part of the United Kingdom and covers the northern third of the island of Great Britain.
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Shropshire
Shropshire (alternatively Salop; abbreviated, in print only, Shrops; demonym Salopian) is a county in the West Midlands of England, bordering Wales to the west, Cheshire to the north, Staffordshire to the east, and Worcestershire and Herefordshire to the south.
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Silures
The Silures were a powerful and warlike tribe or tribal confederation of ancient Britain, occupying what is now south east Wales and perhaps some adjoining areas.
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South Pole
The South Pole, also known as the Geographic South Pole or Terrestrial South Pole, is one of the two points where the Earth's axis of rotation intersects its surface.
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Springer Science+Business Media
Springer Science+Business Media or Springer, part of Springer Nature since 2015, is a global publishing company that publishes books, e-books and peer-reviewed journals in science, humanities, technical and medical (STM) publishing.
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Stage (stratigraphy)
In chronostratigraphy, a stage is a succession of rock strata laid down in a single age on the geologic timescale, which usually represents millions of years of deposition.
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Stratum
In geology and related fields, a stratum (plural: strata) is a layer of sedimentary rock or soil, or igneous rock that were formed at the Earth's surface, with internally consistent characteristics that distinguish it from other layers.
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Supercontinent
In geology, a supercontinent is the assembly of most or all of Earth's continental blocks or cratons to form a single large landmass.
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Teays River
The Teays River was a major preglacial river that drained much of the present Ohio River watershed, but took a more northerly downstream course.
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Tentaculita
Tentaculita is an extinct class of uncertain placement ranging from the Early Ordovician to the Middle Jurassic.
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Trigonotarbida
The order Trigonotarbida is an extinct group of arachnids whose fossil record extends from the late Silurian to the early Permian.
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Trilobite
Trilobites (meaning "three lobes") are a fossil group of extinct marine arachnomorph arthropods that form the class Trilobita.
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Unconformity
An unconformity is a buried erosional or non-depositional surface separating two rock masses or strata of different ages, indicating that sediment deposition was not continuous.
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Ural Ocean
The Ural Ocean (also called the Uralic Ocean) was a small, ancient ocean that was situated between Siberia and Baltica.
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Vascular plant
Vascular plants (from Latin vasculum: duct), also known as tracheophytes (from the equivalent Greek term trachea) and also higher plants, form a large group of plants (c. 308,312 accepted known species) that are defined as those land plants that have lignified tissues (the xylem) for conducting water and minerals throughout the plant.
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Wales
Wales (Cymru) is a country that is part of the United Kingdom and the island of Great Britain.
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Wenlock (Silurian)
The Wenlock (sometimes referred to as the Wenlockian) is the second series of the Silurian.
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Wenlock Edge
Wenlock Edge is a limestone escarpment near Much Wenlock, Shropshire, England and a site of special scientific interest because of its geology.
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Year
A year is the orbital period of the Earth moving in its orbit around the Sun.
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Redirects here:
Early Silurian, Late Silurian, Llandovery Series, Lower Silurian, Ludlow (epoch), Ontarian stage, Pridolian, Rhuddalian, Silur (geology), Silur era, Silurian Era, Silurian Period, Silurian System, Silurian climate, Silurian era, Silurian period, Silurian system, Upper Silurian.
References
[1] https://en.wikipedia.org/wiki/Silurian
