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Mezenia
''Mezenia'' is a genus of macroalgae described by Boris Sokolov in 1976. ''Mezenia'' lived in Eurasia during the Ediacaran between 560 and 551 Ma. Description ''Mezenia kossovoyi'', the only described species, was described by Boris Sokolov in 1976. The original ''Mezenia'' specimen was described as sausage shaped, and 5–6 mm wide. Subsequent specimens were described as smooth, 6mm wide ribbons. Most specimens are incomplete, missing one end. Distribution ''Mezenia kossovoyi'' specimens are found in the Khatyspyt Formation, the Perevalok Formation, and the Lyamatsa Formation, all of which are in Russia. The Khatyspyt Formation is in northern Siberia, the Perevalok Formation is on the western slope of the Central Ural Mountains, and the Lyamatsa Formation is in the White Sea area. Taphonomy ''Mezenia kossovoyi'' has been preserved as carbonaceous compressions in mudstone. Specimens from the Lyamatsa formation had longitudinal and transverse wrinkles created during ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Ediacaran Genera ...
This is a list of all described Ediacaran genera, including the Ediacaran biota. It contains 227 genera. References {{reflist, 30em * Ediacaran The Ediacaran Period ( ) is a geological period that spans 96 million years from the end of the Cryogenian Period 635 million years ago (Mya), to the beginning of the Cambrian Period 538.8 Mya. It marks the end of the Proterozoic Eon, and t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ediacaran
The Ediacaran Period ( ) is a geological period that spans 96 million years from the end of the Cryogenian Period 635 million years ago (Mya), to the beginning of the Cambrian Period 538.8 Mya. It marks the end of the Proterozoic Eon, and the beginning of the Phanerozoic Eon. It is named after the Ediacara Hills of South Australia. The Ediacaran Period's status as an official geological period was ratified in 2004 by the International Union of Geological Sciences (IUGS), making it the first new geological period declared in 120 years. Although the period takes its name from the Ediacara Hills where geologist Reg Sprigg first discovered fossils of the eponymous Ediacaran biota in 1946, the type section is located in the bed of the Enorama Creek within Brachina Gorge in the Flinders Ranges of South Australia, at . The Ediacaran marks the first appearance of widespread multicellular fauna following the end of Snowball Earth glaciation events, the so-called Ediacaran ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boris Sergeyevich Sokolov
Boris Sergeyevich Sokolov (russian: Борис Серге́евич Соколов) (April 9, 1914 – September 2, 2013) was a Russian geologist and paleontologist. Sokolov authored reference works on the stratigraphy of Eastern Europe, in particular the fossil coral records, and created the concept of ''Vendian period'', currently recognized as largely overlapping, but not fully equivalent to Ediacaran. Biography Sokolov, the son of a village feldsher (medic), was born in Vyshny Volochyok. In 1931 he moved to Leningrad and became an apprentice electrician. A blue-collar work experience was a prerequisite for admission into the university. After a year of work Sokolov was allowed to enroll at the Department of Geology and Soil Sciences of Leningrad University. He graduated with honors in 1937 and remained there to take a course of postgraduate studies. Sokolov's early work concentrated on the stratigraphy of the Russian Platform, in particular the diagnostics of fossil corals f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Herald Of The Russian Academy Of Sciences
Established in 1931, the ''Herald of the Russian Academy of Sciences'' (''Vestnik Rossiiskoi Akademii Nauk'') is a monthly peer-reviewed academic journal published by MAIK Nauka/Interperiodica and Springer Science+Business Media. It covers major contributions, speeches, and presentations to the Russian Academy of Sciences from both Russian and foreign academics. Subjects encompass natural, technical, and social sciences, as well as education, the environment, the value of scientific knowledge, and researchers' relationship to society. Since April 2018, the editor-in-chief is Alexey Khokhlov (one of the vice-presidents of the Russian Academy of Sciences). Editors-in-chief * acad. V.P. Volgin (1931—1935, 1945–1951) * acad. N.P. Gorbunov (1936—1937) * acad. V. L. Komarov (1937—1945) * acad . S. I. Vavilov (1945, acting) * acad. A. N. Nesmeyanov (1951—1953) * acad. K. V. Ostrovityanov (1953—1963) * acad. V. A. Kirillin (1963—1965) * acad. N. M. Sissakian (196 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Khatyspyt Formation
The Khatyspyt Formation is a Neoproterozoic formation exposed in the Olenëk Uplift of north central Siberia, which contains the only known instance of the Ediacara biota preserved in a limestone bed. The Khatyspyt Formation forms one of the major parts of the Khorbusuonka Group; underlying the Khatyspyt are dolomites of the Mastakh Formation and their overlying red beds; the Turkut Formation overlies the Khatyspyt. The Khatyspyt and part of the overlying Turkut comprise a major shallowing upward marine carbonate sequence. ''Khatyspytia ''Khatyspytia'' is a frondose Frondosity (from Latin ''frondōsus'' meaning 'leafy') is the property of an organism that normally flourishes with fronds or leaf-like structures. Many frondose organisms are thalloid and lack the organizatio ...'' is named after this formation. References {{reflist Geologic formations of Russia Geology of Siberia Ediacaran Asia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ediacaran Life
The Ediacaran (; formerly Vendian) biota is a taxonomic period classification that consists of all life forms that were present on Earth during the Ediacaran Period (). These were composed of enigmatic tubular and frond-shaped, mostly sessile, organisms. Trace fossils of these organisms have been found worldwide, and represent the earliest known complex multicellular organisms. The Ediacaran biota may have undergone evolutionary radiation in a proposed event called the Avalon explosion, . This was after the Earth had thawed from the Cryogenian period's extensive glaciation. This biota largely disappeared with the rapid increase in biodiversity known as the Cambrian explosion. Most of the currently existing body plans of animals first appeared in the fossil record of the Cambrian rather than the Ediacaran. For macroorganisms, the Cambrian biota appears to have almost completely replaced the organisms that dominated the Ediacaran fossil record, although relationships are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
