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Armin Öpik
Armin Aleksander Öpik (24 June 1898, in Kunda – 15 January 1983, in Canberra) was an Estonian paleontologist who spent the second half of his career (from 1948) at the Bureau of Mineral Resources in Australia. Early life He was born on at the village Lontova, now a quarter of Kunda in Estonia and died in Canberra. His father Karl Heinrich Öpik was a harbormaster and his mother was Leontine Johanna Öpik (''née'' Freiwald). He had five brothers and one sister. His oldest brother Paul Öpik, later a director of the Bank of Estonia, introduced Armin to fossils. His sister Anna was a philologist, fluent in 14 languages, including Sanskrit. His brother Oskar was a diplomat. His brother Ernst was a famous astronomer. During the First World War he got to know Barbara Potaschko (died in 1977, Canberra). They had one son and three daughters. Öpik is mostly known for his work on the Cambrian and Lower Ordovician stratigraphy and paleontology of northern Australia. Studies and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kunda, Estonia
Kunda is a town in Viru-Nigula Parish, Lääne-Viru County, Estonia, located on the coast of the Gulf of Finland. Kunda is best known for its cement factory, port, and archaeological heritage. History Evidence of some of the oldest prehistoric communities in Estonia—hunting, and fishing communities that existed around 7th millennium BC, 6500 BC—were found near Kunda. This settlement gave the name to the Kunda culture. The first written record of Kunda dates back to 1241, when it was mentioned as a village. In 1443 it was mentioned as a manor. Kunda was granted official borough rights on May 1, 1938. Demographics International relations Twin towns — Sister cities The former municipality of Kunda (until 2017) was Twin towns and sister cities, twinned with: * Gdynia, Poland Climate Notable people *Argo Aadli (born 1980), theatre and film actor *Armin Öpik (1898–1983), paleontologist *Ernst Öpik (1893–1985), astronomer and astrophysicist *Jüri Parijõgi (18 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stratigraphy
Stratigraphy is a branch of geology concerned with the study of rock layers (strata) and layering (stratification). It is primarily used in the study of sedimentary and layered volcanic rocks. Stratigraphy has three related subfields: lithostratigraphy (lithologic stratigraphy), biostratigraphy (biologic stratigraphy), and chronostratigraphy (stratigraphy by age). Historical development Catholic priest Nicholas Steno established the theoretical basis for stratigraphy when he introduced the law of superposition, the principle of original horizontality and the principle of lateral continuity in a 1669 work on the fossilization of organic remains in layers of sediment. The first practical large-scale application of stratigraphy was by William Smith in the 1790s and early 19th century. Known as the "Father of English geology", Smith recognized the significance of strata or rock layering and the importance of fossil markers for correlating strata; he created the first geo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Australian Paleontologists
Australian(s) may refer to: Australia * Australia, a country * Australians, citizens of the Commonwealth of Australia ** European Australians ** Anglo-Celtic Australians, Australians descended principally from British colonists ** Aboriginal Australians, indigenous peoples of Australia as identified and defined within Australian law * Australia (continent) ** Indigenous Australians * Australian English, the dialect of the English language spoken in Australia * Australian Aboriginal languages * ''The Australian'', a newspaper * Australiana, things of Australian origins Other uses * Australian (horse), a racehorse * Australian, British Columbia, an unincorporated community in Canada See also * The Australian (other) * Australia (other) * * * Austrian (other) Austrian may refer to: * Austrians, someone from Austria or of Austrian descent ** Someone who is considered an Austrian citizen * Austrian German dialect * Something associated with the count ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Estonian Paleontologists
Estonian may refer to: * Something of, from, or related to Estonia, a country in the Baltic region in northern Europe * Estonians, people from Estonia, or of Estonian descent * Estonian language * Estonian cuisine * Estonian culture See also * * Estonia (other) * Languages of Estonia * List of Estonians This is a list of notable people from Estonia, or of Estonian ancestry. Architects * Andres Alver (born 1953) * Dmitri Bruns (1929–2020) * Karl Burman (1882–1965) * Eugen Habermann (1884–1944) * Georg Hellat (1870–1943) * Otto Pius Hip ... {{Disambiguation Language and nationality disambiguation pages ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1983 Deaths
1983 saw both the official beginning of the Internet and the first mobile cellular telephone call. Events January * January 1 – The migration of the ARPANET to Internet protocol suite, TCP/IP is officially completed (this is considered to be the beginning of the true Internet). * January 6 – Pope John Paul II appoints a bishop over the Czechoslovak exile community, which the ''Rudé právo'' newspaper calls a "provocation." This begins a year-long disagreement between the Czechoslovak Socialist Republic and the Vatican City, Vatican, leading to the eventual restoration of diplomatic relations between the two states. * January 14 – The head of Bangladesh's military dictatorship, Hussain Muhammad Ershad, announces his intentions to "turn Bangladesh into an Islamic state." * January 18 – United States Secretary of the Interior, U.S. Secretary of the Interior James G. Watt makes controversial remarks blaming poor living conditions on Indian reservation, Native American re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1898 Births
Events January * January 1 – New York City annexes land from surrounding counties, creating the City of Greater New York as the world's second largest. The city is geographically divided into five boroughs: Manhattan, Brooklyn, Queens, The Bronx and Staten Island. * January 13 – Novelist Émile Zola's open letter to the President of the French Republic on the Dreyfus affair, , is published on the front page of the Paris daily newspaper , accusing the government of wrongfully imprisoning Alfred Dreyfus and of antisemitism. February * February 12 – The automobile belonging to Henry Lindfield of Brighton rolls out of control down a hill in Purley, London, England, and hits a tree; thus he becomes the world's first fatality from an automobile accident on a public highway. * February 15 – Spanish–American War: The explodes and sinks in Havana Harbor, Cuba, for reasons never fully established, killing 266 men. The event precipitates the United States' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crinoid
Crinoids are marine invertebrates that make up the class Crinoidea. Crinoids that remain attached to the sea floor by a stalk in their adult form are commonly called sea lilies, while the unstalked forms, called feather stars or comatulids, are members of the largest crinoid order, Comatulida. Crinoids are echinoderms in the phylum Echinodermata, which also includes the starfish, brittle stars, sea urchins and sea cucumbers. They live in both shallow water and in depths of over . Adult crinoids are characterised by having the mouth located on the upper surface. This is surrounded by feeding arms, and is linked to a U-shaped gut, with the anus being located on the oral disc near the mouth. Although the basic echinoderm pattern of fivefold symmetry can be recognised, in most crinoids the five arms are subdivided into ten or more. These have feathery pinnules and are spread wide to gather planktonic particles from the water. At some stage in their lives, most crinoids have a sho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Silurian
The Silurian ( ) is a geologic period and system spanning 23.5 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 third and shortest period of the Paleozoic Era, and the third of twelve periods of the Phanerozoic Eon. 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) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Fellows Of The Australian Academy Of Science
The Fellowship of the Australian Academy of Science is made up of about 500 Australian scientists. Scientists judged by their peers to have made an exceptional contribution to knowledge in their field may be elected to Fellowship of the Academy. Fellows are often denoted using the post-nominal FAA (Fellow of the Australian Academy of Science). A small number of distinguished foreign scientists with substantial connections to Australian science are elected as Corresponding Members. Fellows are appointed for life; this table also contains deceased fellows. Fellows Corresponding Members References *Australian Academy of ScienceFellowship list External links *http://www.asap.unimelb.edu.au/asap_inf.htm – Australian Science Archives Project *From http://www.asap.unimelb.edu.au/bsparcs/aasmemoirs AAS Biographical Memoirs (1966–1996) *From http://www.sciencearchive.org.au ** ** ** ** ** ** ** ** ** *From https://www.science.org.au ** ** ** ** ** ** ** ** **{{cite web, ur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Agnostida
Agnostida are an order of extinct arthropods which have classically been seen as a group of highly modified trilobites, though some recent research has doubted this placement. Regardless, they appear to be close relatives as part of the Artiopoda. They are present in the Lower Cambrian fossil record along with trilobites from the Redlichiida, Corynexochida, and Ptychopariida orders, and were highly diverse throughout the Cambrian. Agnostidan diversity severely declined during the Cambrian-Ordovician transition, and the last agnostidans went extinct in the Late Ordovician. Systematics The Agnostida are divided into two suborders — Agnostina and Eodiscina — which are then subdivided into a number of families. As a group, agnostids are isopygous, meaning their pygidium is similar in size and shape to their cephalon. Most agnostid species were eyeless. The systematic position of the order Agnostida within the class Trilobita remains uncertain, and there has been c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trilobite
Trilobites (; meaning "three-lobed entities") are extinction, extinct marine arthropods that form the class (biology), class Trilobita. One of the earliest groups of arthropods to appear in the fossil record, trilobites were among the most successful of all early animals, existing in oceans for almost 270million years, with over 22,000 species having been described. Because trilobites had wide diversity and an easily fossilized mineralised exoskeleton made of calcite, they left an extensive fossil record. The study of their fossils has facilitated important contributions to biostratigraphy, paleontology, evolution, evolutionary biology, and plate tectonics. Trilobites are placed within the clade Artiopoda, which includes many organisms that are morphologically similar to trilobites, but are largely unmineralised. The relationship of Artiopoda to other arthropods is uncertain. Trilobites evolved into many ecological niches; some moved over the seabed as predators, scavengers, or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geology Of The Australian Capital Territory
The geology of the Australian Capital Territory includes rocks dating from the Ordovician around 480 million years ago, whilst most rocks are from the Silurian. During the Ordovician period the region—along with most of eastern Australia—was part of the ocean floor. The area contains the ''Pittman Formation'' consisting largely of quartz-rich sandstone, siltstone and shale; the Adaminaby Beds and the Acton Shale. Most of the younger rocks are pyroclastic deposits from explosive volcanic eruptions, but the ''Yarralumla Formation'' is a sedimentary mudstone/siltstone formation that was formed around 425 million years ago. In the 1840s fossils of brachiopods and trilobites from the Silurian period were discovered at Woolshed Creek near Duntroon by the Reverend William Branwhite Clarke. At the time these were the oldest fossils discovered in Australia, though this record has since been far surpassed. Other specific geological places of interest include the State Circle cuttin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
