| Paralogania Temporal range: | |
|---|---|
 | |
| Representative denticle of Paralogania. | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Infraphylum: | Agnatha |
| Order: | † Loganelliformes |
| Family: | † Loganiidae |
| Genus: | † Paralogania |
Paralogania is an extinct genus of thelodonti fish that is known from the Upper Silurian geological period (Wenlock / Ludlow); the best fossil deposits are from the Baltic Sea region, but it is widespread in the Northern Hemisphere. [1]
Voronezh State University is one of the main universities in Central Russia, located in the city of Voronezh. The university was established in 1918 by professors evacuated from the University of Tartu in Estonia. The university has 18 faculties and an enrollment of 22,000 students from Russia, Europe, Africa, the Americas and Asia. Besides, the university has 6 research institutes and 16 research laboratories administered by the Russian Academy of Science. The university is composed of 10 buildings and 7 resident halls situated throughout the city. For over 90 years the University has trained more than 100,000 professionals.
Established in 1918, Tallinn University of Technology is the only technical university in Estonia. TalTech, in the capital city of Tallinn, is a university for engineering, business, public administration and maritime affairs. TalTech has colleges in Tartu and Kohtla-Järve. Despite the similar names, Tallinn University and Tallinn University of Technology are separate institutions.
The Proceedings of the Royal Irish Academy (PRIA) is the journal of the Royal Irish Academy, founded in 1785 to promote the study of science, polite literature, and antiquities. It was known as several titles over the years:
Thelodus is an extinct genus of thelodont agnathan that lived during the Silurian period. Fossils have been found in Europe, Asia and North America. Unlike many thelodonts, species of Thelodus are known not only from scales, but from impressions in rocks. Some species, such as the Canadian T. inauditus, are thought to be comparable in size to other thelodonts, i.e., from 5 to 15 centimeters in length. The scales of the type species, T. parvidens of Silurian Great Britain, however, reach the size of coins, and, if proportioned like other thelodonts, such as Loganellia, the living animal would have been about one meter in length.
Founded in 1938, the Estonian Academy of Sciences is Estonia's national academy of science in Tallinn. As with other national academies, it is an independent group of well-known scientists whose stated aim is to promote research and development, encourage international scientific cooperation, and disseminate knowledge to the public. As of March 2017, it had 77 full members and 20 foreign members. Since 15 October 2014, the president of the Academy is the mathematician Tarmo Soomere.
Kukersite is a light-brown marine type oil shale of Ordovician age. It is found in the Baltic Oil Shale Basin in Estonia and North-West Russia. It is of the lowest Upper Ordovician formation, formed some 460 million years ago. It was named after the German name of the Kukruse Manor in the north-east of Estonia by the Russian paleobotanist Mikhail Zalessky in 1917. Some minor kukersite resources occur in sedimentary basins of Michigan, Illinois, Wisconsin, North Dakota, and Oklahoma in North America and in the Amadeus and Canning basins of Australia.
Sphaerocoryphe is a genus of trilobite that lived from the middle Ordovician to the Silurian. Its fossils have been found in Australia, Europe, and North America. Both Sphaerocoryphe and Hemisphaerocoryphe had a characteristically bulbous glabella, and the two may represent only one genus.
Ülle Kukk is an Estonian botanist and conservationist.
Oil Shale is a quarterly peer-reviewed scientific journal covering research in petrology, especially concerning oil shale. The journal covers geology, mining, formation, composition, methods of processing, combustion, economics, and environmental protection related to oil shale. It is abstracted and indexed in the Science Citation Index. The editor-in-chief is Andres Siirde and executive editor is Meelika Nõmme.
Longodus is an extinct genus of thelodont, placed in its own family – Longodidae – which existed in what is now Estonia during the Ludlow epoch of the upper Silurian period. The type and only species is Longodus acicularis. They are most noted for their long, needle-like scales, which run vertically along their trunk.
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The Gauja Formation is a Middle Devonian fossil locality in Estonia and Latvia. It is named after the Gauja River, where it is exposed along the banks.
Panga Cliff is a coastal cliff located on the northern shore of Saaremaa, at the end of the Kuressaare - Võhma road, close to Panga village. It is the highest of the Saaremaa and Muhu cliffs, reaching a height of 20 meters (66 ft). The entire cliff is approximately 2.5 km long.
Archipelepidiformes is an order of extinct jawless fishes in the class Thelodonti.
Archipelepis is a genus of extinct thelodont agnathans, and are the most primitive recognized thelodonts of which whole body fossils are known. Fossils of bodies and scales are currently known from Late Telychian to Wenlock-aged marine strata of northern Canada.
Erepsilepis is an extinct thelodont agnathan genus in the family Phlebolepididae.
The Osmussaar earthquake occurred on 25 October 1976 near the north tip of Osmussaar, an island close to the coast of Estonia. Its hypocenter was 10–13 kilometres (6–8 mi) below ground level, and it was measured at 4.5–4.7 mb. The earthquake was largely felt in surrounding areas like north Estonia, south Finland and Sweden. Aftershocks also took place in November.
Estlandia is a gonambonitid genus. It is one of the endemic brachiopods in the Ordovician of Baltoscandia. Currently, eight different species and subspecies of the genus have been recorded from the Aseri to Keila stages.
Anto Raukas was an Estonian geologist and science organiser.
Oeselia mosaica is a fossil jawless fish and is the only species in its genus and in the family Oeseliidae. It is a member of an extinct family of thelodonts or jawless fishes. The family and genus were established along with the description of the species by Tiuu Märss in 2005.
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