Timeline of geography, paleontology
Encyclopedia
Timeline
Chronology
Chronology is the science of arranging events in their order of occurrence in time, such as the use of a timeline or sequence of events. It is also "the determination of the actual temporal sequence of past events".Chronology is part of periodization...

 of paleontology
Paleontology
Paleontology "old, ancient", ὄν, ὀντ- "being, creature", and λόγος "speech, thought") is the study of prehistoric life. It includes the study of fossils to determine organisms' evolution and interactions with each other and their environments...


  • 1027 — The Persian naturalist
    Islamic geography
    Geography and cartography in medieval Islam refers to the advancement of geography, cartography and the earth sciences in the medieval Islamic civilization....

    , Avicenna
    Avicenna
    Abū ʿAlī al-Ḥusayn ibn ʿAbd Allāh ibn Sīnā , commonly known as Ibn Sīnā or by his Latinized name Avicenna, was a Persian polymath, who wrote almost 450 treatises on a wide range of subjects, of which around 240 have survived...

    , explains how the stoniness
    Rock (geology)
    In geology, rock or stone is a naturally occurring solid aggregate of minerals and/or mineraloids.The Earth's outer solid layer, the lithosphere, is made of rock. In general rocks are of three types, namely, igneous, sedimentary, and metamorphic...

     of fossil
    Fossil
    Fossils are the preserved remains or traces of animals , plants, and other organisms from the remote past...

    s is caused in The Book of Healing
    The Book of Healing
    The Book of Healing is a scientific and philosophical encyclopedia written by Abū Alī ibn Sīnā from Asfahana, near Bukhara in Greater Persia. Despite its English title, it is not in fact concerned with medicine...

    , proposing the theory of petrifying
    Petrifaction
    In geology, petrifaction, petrification or silicification is the process by which organic material is converted into stone by impregnation with silica. It is a rare form of fossilization...

     fluid
    Fluid
    In physics, a fluid is a substance that continually deforms under an applied shear stress. Fluids are a subset of the phases of matter and include liquids, gases, plasmas and, to some extent, plastic solids....

    s (succus lapidificatus).
  • 1031-1095 — The Chinese naturalist
    History of science and technology in China
    The history of science and technology in China is both long and rich with many contributions to science and technology. In antiquity, independently of other civilizations, ancient Chinese philosophers made significant advances in science, technology, mathematics, and astronomy...

    , Shen Kuo
    Shen Kuo
    Shen Kuo or Shen Gua , style name Cunzhong and pseudonym Mengqi Weng , was a polymathic Chinese scientist and statesman of the Song Dynasty...

    , uses the evidence of marine
    Marine (ocean)
    Marine is an umbrella term. As an adjective it is usually applicable to things relating to the sea or ocean, such as marine biology, marine ecology and marine geology...

     fossils found in the Taihang Mountains
    Taihang Mountains
    The Taihang Mountains are a Chinese mountain range running down the eastern edge of the Loess Plateau in Henan, Shanxi and Hebei provinces. The range extends over 400 km from north to south and has an average elevation of 1,500 to 2,000 meters. The principal peak is Xiao Wutaishan...

     to infer the existence of geological
    Geology
    Geology is the science comprising the study of solid Earth, the rocks of which it is composed, and the processes by which it evolves. Geology gives insight into the history of the Earth, as it provides the primary evidence for plate tectonics, the evolutionary history of life, and past climates...

     processes
    Process (science)
    In science, a process is every sequence of changes of a real object/body which is observable using the scientific method. Therefore, all sciences analyze and model processes....

     of geomorphology
    Geomorphology
    Geomorphology is the scientific study of landforms and the processes that shape them...

     and shifting of seashores over time, and using his observation of preserved petrified bamboo
    Bamboo
    Bamboo is a group of perennial evergreens in the true grass family Poaceae, subfamily Bambusoideae, tribe Bambuseae. Giant bamboos are the largest members of the grass family....

    s found underground in Yan'an
    Yan'an
    Yan'an , is a prefecture-level city in the Shanbei region of Shaanxi province in China, administering several counties, including Zhidan County , which served as the Chinese communist capital before the city of Yan'an proper took that role....

    , he argues for a theory of gradual climate change
    Climate change
    Climate change is a significant and lasting change in the statistical distribution of weather patterns over periods ranging from decades to millions of years. It may be a change in average weather conditions or the distribution of events around that average...

    .
  • 1320-1390 — Avicenna's theory of petrifying fluids (succus lapidificatus) was elaborated on by Albert of Saxony
    Albert of Saxony (philosopher)
    Albert of Saxony was a German philosopher known for his contributions to logic and physics...

     in the 14th century.
  • 16th century — The theory of petrifying fluids (succus lapidificatus) is accepted in some form by most naturalist
    Naturalist
    Naturalist may refer to:* Practitioner of natural history* Conservationist* Advocate of naturalism * Naturalist , autobiography-See also:* The American Naturalist, periodical* Naturalism...

    s by this time.
  • 1770 — The fossil
    Fossil
    Fossils are the preserved remains or traces of animals , plants, and other organisms from the remote past...

    ised bones of a huge animal (later identified as a Mosasaur
    Mosasaur
    Mosasaurs are large extinct marine lizards. The first fossil remains were discovered in a limestone quarry at Maastricht on the Meuse in 1764...

    ) are found in a quarry near Maastricht
    Maastricht
    Maastricht is situated on both sides of the Meuse river in the south-eastern part of the Netherlands, on the Belgian border and near the German border...

     in the Netherlands
    Netherlands
    The Netherlands is a constituent country of the Kingdom of the Netherlands, located mainly in North-West Europe and with several islands in the Caribbean. Mainland Netherlands borders the North Sea to the north and west, Belgium to the south, and Germany to the east, and shares maritime borders...

    .
  • 1795 — Georges Cuvier
    Georges Cuvier
    Georges Chrétien Léopold Dagobert Cuvier or Jean Léopold Nicolas Frédéric Cuvier , known as Georges Cuvier, was a French naturalist and zoologist...

     identifies the bones found in the Netherlands in 1770 as belonging to an extinct reptile.
  • 1811 — Mary Anning
    Mary Anning
    Mary Anning was a British fossil collector, dealer and palaeontologist who became known around the world for a number of important finds she made in the Jurassic age marine fossil beds at Lyme Regis where she lived...

     discovers the fossilised remains of an ichthyosaur
    Ichthyosaur
    Ichthyosaurs were giant marine reptiles that resembled fish and dolphins...

     at Lyme Regis
    Lyme Regis
    Lyme Regis is a coastal town in West Dorset, England, situated 25 miles west of Dorchester and east of Exeter. The town lies in Lyme Bay, on the English Channel coast at the Dorset-Devon border...

    .
  • 1815 — William Smith
    William Smith (geologist)
    William 'Strata' Smith was an English geologist, credited with creating the first nationwide geological map. He is known as the "Father of English Geology" for collating the geological history of England and Wales into a single record, although recognition was very slow in coming...

     published The Map that Changed the World
    The Map that Changed the World
    The Map that Changed the World is a book by Simon Winchester.It tells the story of geologist William Smith and his great achievement, the first geological map of England and Wales. It was the first national-scale geological map, and by far the most accurate of its time...

    , the first geologic map of England, Wales, and southern Scotland.
  • 1821 — William Buckland
    William Buckland
    The Very Rev. Dr William Buckland DD FRS was an English geologist, palaeontologist and Dean of Westminster, who wrote the first full account of a fossil dinosaur, which he named Megalosaurus...

     finds the remains of a hyena
    Hyena
    Hyenas or Hyaenas are the animals of the family Hyaenidae of suborder feliforms of the Carnivora. It is the fourth smallest biological family in the Carnivora , and one of the smallest in the mammalia...

    s' den in Yorkshire
    Yorkshire
    Yorkshire is a historic county of northern England and the largest in the United Kingdom. Because of its great size in comparison to other English counties, functions have been increasingly undertaken over time by its subdivisions, which have also been subject to periodic reform...

    , containing the bones of lion
    Lion
    The lion is one of the four big cats in the genus Panthera, and a member of the family Felidae. With some males exceeding 250 kg in weight, it is the second-largest living cat after the tiger...

    s, elephant
    Elephant
    Elephants are large land mammals in two extant genera of the family Elephantidae: Elephas and Loxodonta, with the third genus Mammuthus extinct...

    s and rhinoceros
    Rhinoceros
    Rhinoceros , also known as rhino, is a group of five extant species of odd-toed ungulates in the family Rhinocerotidae. Two of these species are native to Africa and three to southern Asia....

    .
  • 1821-1822 — Mary Anning discovers the world's first Plesiosaur
    Plesiosaur
    Plesiosauroidea is an extinct clade of carnivorous plesiosaur marine reptiles. Plesiosauroids, are known from the Jurassic and Cretaceous Periods...

     skeleton at Lyme Regis
    Lyme Regis
    Lyme Regis is a coastal town in West Dorset, England, situated 25 miles west of Dorchester and east of Exeter. The town lies in Lyme Bay, on the English Channel coast at the Dorset-Devon border...

    .
  • 1822 — Gideon Mantell
    Gideon Mantell
    Gideon Algernon Mantell MRCS FRS was an English obstetrician, geologist and palaeontologist...

     discovers the fossilized skeleton of an Iguanodon
    Iguanodon
    Iguanodon is a genus of ornithopod dinosaur that lived roughly halfway between the first of the swift bipedal hypsilophodontids and the ornithopods' culmination in the duck-billed dinosaurs...

     dinosaur
  • 1823 — Human bones are found with those of the woolly mammoth
    Mammoth
    A mammoth is any species of the extinct genus Mammuthus. These proboscideans are members of Elephantidae, the family of elephants and mammoths, and close relatives of modern elephants. They were often equipped with long curved tusks and, in northern species, a covering of long hair...

     at Paviland Cave on the Gower Peninsula
    Gower Peninsula
    Gower or the Gower Peninsula is a peninsula in south Wales, jutting from the coast into the Bristol Channel, and administratively part of the City and County of Swansea. Locally it is known as "Gower"...

    , proving that the two had lived on earth at the same time.
  • 1836 — Edward Hitchcock describes the footprints of giant birds from Jurassic formations in Connecticut
  • 1841 — Richard Owen
    Richard Owen
    Sir Richard Owen, FRS KCB was an English biologist, comparative anatomist and palaeontologist.Owen is probably best remembered today for coining the word Dinosauria and for his outspoken opposition to Charles Darwin's theory of evolution by natural selection...

     coins the word "dinosaur
    Dinosaur
    Dinosaurs are a diverse group of animals of the clade and superorder Dinosauria. They were the dominant terrestrial vertebrates for over 160 million years, from the late Triassic period until the end of the Cretaceous , when the Cretaceous–Paleogene extinction event led to the extinction of...

    "
  • 1855 — The first Archaeopteryx
    Archaeopteryx
    Archaeopteryx , sometimes referred to by its German name Urvogel , is a genus of theropod dinosaur that is closely related to birds. The name derives from the Ancient Greek meaning "ancient", and , meaning "feather" or "wing"...

     fossil found in Bavaria
    Bavaria
    Bavaria, formally the Free State of Bavaria is a state of Germany, located in the southeast of Germany. With an area of , it is the largest state by area, forming almost 20% of the total land area of Germany...

    , Germany
    Germany
    Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...

    .
  • 1858 — The first dinosaur skeleton, Hadrosaurus
    Hadrosaurus
    Hadrosaurus is a valid genus of hadrosaurid dinosaur. In 1858, a skeleton of a dinosaur from this genus was the first dinosaur skeleton known from more than isolated teeth to be found in North America. In 1868, it became the first ever mounted dinosaur skeleton...

    , is excavated in the United States
    United States
    The United States of America is a federal constitutional republic comprising fifty states and a federal district...

     and described by Joseph Leidy
    Joseph Leidy
    Joseph Leidy was an American paleontologist.Leidy was professor of anatomy at the University of Pennsylvania, and later was a professor of natural history at Swarthmore College. His book Extinct Fauna of Dakota and Nebraska contained many species not previously described and many previously...

  • 1869 — Joseph Lockyer starts the scientific journal
    Scientific journal
    In academic publishing, a scientific journal is a periodical publication intended to further the progress of science, usually by reporting new research. There are thousands of scientific journals in publication, and many more have been published at various points in the past...

     Nature
    Nature (journal)
    Nature, first published on 4 November 1869, is ranked the world's most cited interdisciplinary scientific journal by the Science Edition of the 2010 Journal Citation Reports...

  • 1871 — Othniel Charles Marsh
    Othniel Charles Marsh
    Othniel Charles Marsh was an American paleontologist. Marsh was one of the preeminent scientists in the field; the discovery or description of dozens of news species and theories on the origins of birds are among his legacies.Born into a modest family, Marsh was able to afford higher education...

     discovers the first American pterosaur
    Pterosaur
    Pterosaurs were flying reptiles of the clade or order Pterosauria. They existed from the late Triassic to the end of the Cretaceous Period . Pterosaurs are the earliest vertebrates known to have evolved powered flight...

     fossils.
  • 1878 — The first Diplodocus
    Diplodocus
    Diplodocus , or )is a genus of diplodocid sauropod dinosaur whose fossils were first discovered in 1877 by S. W. Williston. The generic name, coined by Othniel Charles Marsh in 1878, is a Neo-Latin term derived from Greek "double" and "beam", in reference to its double-beamed chevron bones...

     skeleton is found at Como Bluff, Wyoming
    Wyoming
    Wyoming is a state in the mountain region of the Western United States. The western two thirds of the state is covered mostly with the mountain ranges and rangelands in the foothills of the Eastern Rocky Mountains, while the eastern third of the state is high elevation prairie known as the High...

  • 1905 — Tyrannosaurus rex
    Tyrannosaurus
    Tyrannosaurus meaning "tyrant," and sauros meaning "lizard") is a genus of coelurosaurian theropod dinosaur. The species Tyrannosaurus rex , commonly abbreviated to T. rex, is a fixture in popular culture. It lived throughout what is now western North America, with a much wider range than other...

     is described and named by Henry Fairfield Osborn
    Henry Fairfield Osborn
    Henry Fairfield Osborn, Sr. ForMemRS was an American geologist, paleontologist, and eugenicist.-Early life and career:...

  • 1909 — Discovery of the Burgess Shale
    Burgess Shale
    The Burgess Shale Formation, located in the Canadian Rockies of British Columbia, is one of the world's most celebrated fossil fields, and the best of its kind. It is famous for the exceptional preservation of the soft parts of its fossils...

     Cambrian fossil site
  • 1912 — Continental Drift
    Continental drift
    Continental drift is the movement of the Earth's continents relative to each other. The hypothesis that continents 'drift' was first put forward by Abraham Ortelius in 1596 and was fully developed by Alfred Wegener in 1912...

     proposed by Alfred Wegener
    Alfred Wegener
    Alfred Lothar Wegener was a German scientist, geophysicist, and meteorologist.He is most notable for his theory of continental drift , proposed in 1912, which hypothesized that the continents were slowly drifting around the Earth...

    , leading to plate tectonics
    Plate tectonics
    Plate tectonics is a scientific theory that describes the large scale motions of Earth's lithosphere...

     and explanation of many surface features.
  • 1915 — Spinosaurus
    Spinosaurus
    Spinosaurus is a genus of theropod dinosaur which lived in what is now North Africa, from the lower Albian to lower Cenomanian stages of the Cretaceous period, about 112 to 97 million years ago. This genus was first known from Egyptian remains discovered in 1912 and described by German...

     to be found in North Africa
    North Africa
    North Africa or Northern Africa is the northernmost region of the African continent, linked by the Sahara to Sub-Saharan Africa. Geopolitically, the United Nations definition of Northern Africa includes eight countries or territories; Algeria, Egypt, Libya, Morocco, South Sudan, Sudan, Tunisia, and...

     is speculated to be the largest terrestrial predator that ever lived
  • 1920 — Andrew Douglass proposes dendrochronology
    Dendrochronology
    Dendrochronology or tree-ring dating is the scientific method of dating based on the analysis of patterns of tree-rings. Dendrochronology can date the time at which tree rings were formed, in many types of wood, to the exact calendar year...

     dating
  • 1920 — Milutin Milanković
    Milutin Milankovic
    Milutin Milanković was a Serbian geophysicist and civil engineer, best known for his theory of ice ages, suggesting a relationship between Earth's long-term climate changes and periodic changes in its orbit, now known as Milankovitch cycles. Milanković gave two fundamental contributions to global...

     proposes that long term climatic cycles
    Milankovitch cycles
    Milankovitch theory describes the collective effects of changes in the Earth's movements upon its climate, named after Serbian civil engineer and mathematician Milutin Milanković, who worked on it during First World War internment...

     may be due to changes in the eccentricity of the Earth's orbit
    Orbit
    In physics, an orbit is the gravitationally curved path of an object around a point in space, for example the orbit of a planet around the center of a star system, such as the Solar System...

     and changes in the Earth's obliquity
  • 1947 — Willard Libby
    Willard Libby
    Willard Frank Libby was an American physical chemist noted for his role in the 1949 development of radiocarbon dating, a process which revolutionized archaeology....

     introduces carbon-14 dating
    Radiocarbon dating
    Radiocarbon dating is a radiometric dating method that uses the naturally occurring radioisotope carbon-14 to estimate the age of carbon-bearing materials up to about 58,000 to 62,000 years. Raw, i.e. uncalibrated, radiocarbon ages are usually reported in radiocarbon years "Before Present" ,...

  • 1970 — The Ghugua Fossil Park set up in Madhya Pradesh, India after the discovery of Plant and Fish fossils found in the area dating back to more than six crore years back. Fossilized remains of variegated plant life are intact - frozen in stone after the volcanic activities that occurred leading to preservation of predominant plants of the Gondwanaland, lending credence to the theory of the Continental Drift.
  • 1974 — Donald Johanson
    Donald Johanson
    Donald Carl Johanson is an American paleoanthropologist. Along with Maurice Taieb, and Yves Coppens he is known for the discovery of the skeleton of the female hominid australopithecine known as "Lucy", in the Afar Triangle region of Hadar, Ethiopia.-Early years:Johanson was born in Chicago,...

     and Tom Gray discover a 3.5 million-year-old female hominid fossil that is 40% complete and name it "Lucy
    Lucy (Australopithecus)
    Lucy is the common name of AL 288-1, several hundred pieces of bone representing about 40% of the skeleton of an individual Australopithecus afarensis. The specimen was discovered in 1974 at Hadar in the Awash Valley of Ethiopia's Afar Depression. Lucy is estimated to have lived 3.2 million years...

    "
  • 1980 — Luis Alvarez, Walter Alvarez, Frank Asaro, and Helen Michel propose that a giant comet or asteroid may have struck the Earth approximately 65 million years ago thereby causing massive extinctions and enriching the iridium
    Iridium
    Iridium is the chemical element with atomic number 77, and is represented by the symbol Ir. A very hard, brittle, silvery-white transition metal of the platinum family, iridium is the second-densest element and is the most corrosion-resistant metal, even at temperatures as high as 2000 °C...

     in the K–T boundary
    K–T boundary
    The K–T boundary is a geological signature, usually a thin band, dated to 65.5 ± 0.3 Ma ago. K is the traditional abbreviation for the Cretaceous period, and T is the abbreviation for the Tertiary period...

  • 1984 — Hou Xianguang discovers the Chengjiang Cambrian fossil site
  • 2009 — Fossils of Titanoboa
    Titanoboa
    Titanoboa, , meaning "titanic boa," is a genus of snake that lived approximately 58 to 60 million years ago, in the Paleocene epoch, a 10-million-year period immediately following the dinosaur extinction event...

     are unearthed in the coal mines of Cerrejón
    Cerrejón
    Cerrejón is a coal mine located in the Guajira department in the north of Colombia. It is the largest mining operation in Colombia and among the largest open-pit coal mines in the world. The legal entity managing the Cerrejón operation is known as Carbones del Cerrejón Ltd...

     in La Guajira, Colombia
    Colombia
    Colombia, officially the Republic of Colombia , is a unitary constitutional republic comprising thirty-two departments. The country is located in northwestern South America, bordered to the east by Venezuela and Brazil; to the south by Ecuador and Peru; to the north by the Caribbean Sea; to the...

    . This large snake
    Snake
    Snakes are elongate, legless, carnivorous reptiles of the suborder Serpentes that can be distinguished from legless lizards by their lack of eyelids and external ears. Like all squamates, snakes are ectothermic, amniote vertebrates covered in overlapping scales...

    gives a hint that Earth was warmer than 90°F (30°C)
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