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Amurosaurus
''Amurosaurus'' (; "Amur lizard") is a genus of lambeosaurine hadrosaurid dinosaur found in the latest Cretaceous period (66 million years ago)Godefroit, P., Lauters, P., Van Itterbeeck, J., Bolotsky, Y. and Bolotsky, I.Y. (2011). "Recent advances on study of hadrosaurid dinosaurs in Heilongjiang (Amur) River area between China and Russia." ''Global Geology'', 2011(3). of eastern Asia. Fossil bones of adults are rare, but an adult would most likely have been at least long. According to Gregory S. Paul, it was about long and weighed about . Discovery and naming Russian paleontologists Yuri Bolotsky and Sergei Kurzanov first described and named this dinosaur in 1991. The generic name is derived from the Amur River and the Greek word ''sauros'' ("lizard"). The Amur (called Heilongjiang or "Black Dragon River" in Chinese) forms the border of Russia and China, and is near where this dinosaur's remains were found. There is one known species (''A. riabinini''), named in honor of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amurosaurus Skeletal
''Amurosaurus'' (; "Amur lizard") is a genus of lambeosaurinae, lambeosaurine hadrosaurid dinosaur found in the latest Cretaceous period (66 million years ago)Godefroit, P., Lauters, P., Van Itterbeeck, J., Bolotsky, Y. and Bolotsky, I.Y. (2011). "Recent advances on study of hadrosaurid dinosaurs in Heilongjiang (Amur) River area between China and Russia." ''Global Geology'', 2011(3). of eastern Asia. Fossil bones of adults are rare, but an adult would most likely have been at least long. According to Gregory S. Paul, it was about long and weighed about . Discovery and naming Russian paleontologists Yuri Bolotsky and Sergei Kurzanov first described and named this dinosaur in 1991. The generic name is derived from the Amur River and the Ancient Greek, Greek word ''sauros'' ("lizard"). The Amur (called Heilongjiang or "Black Dragon River" in Chinese (language), Chinese) forms the border of Russia and China, and is near where this dinosaur's remains were found. There is one know ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hadrosaurid
Hadrosaurids (), or duck-billed dinosaurs, are members of the ornithischian family Hadrosauridae. This group is known as the duck-billed dinosaurs for the flat duck-bill appearance of the bones in their snouts. The ornithopod family, which includes genera such as ''Edmontosaurus'' and '' Parasaurolophus'', was a common group of herbivores during the Late Cretaceous Period. Hadrosaurids are descendants of the Upper Jurassic/Lower Cretaceous iguanodontian dinosaurs and had a similar body layout. Hadrosaurs were among the most dominant herbivores during the Late Cretaceous in Asia and North America, and during the close of the Cretaceous several lineages dispersed into Europe, Africa, South America and Antarctica. Like other ornithischians, hadrosaurids had a predentary bone and a pubic bone which was positioned backwards in the pelvis. Unlike more primitive iguanodonts, the teeth of hadrosaurids are stacked into complex structures known as dental batteries, which acted as effectiv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Udurchukan Formation
The Udurchukan Formation is a geological formation located in Amur Region, Far East Russia. Based on palynomorphs such as ''Wodehouseia spinata'' the Udurchukan is considered of Maastrichtian age of the Late Cretaceous, during the Cretaceous Period. Fossil record Inasmuch as '' Wodehouseia spinata'' and '' Aquillapollenites subtilis'' are known in the Americas only from the Late Maastrichtian, the presence of these palynomorphs in the Udurchukan caused Godefroit to consider the unit and its lambeosaur dominated fauna to be coeval with the Lance Formation and Hell Creek Formation. However, research in the Songliao Basin indicates ''Wodehouseia spinata'' is also known from the early (albeit not basal) and middle Maastrichtian of Asia. The latest view, appearing in the paper on comparative osteology of '' Edmontosaurus'' and ''Shantungosaurus'', is that one Udurchukan Formation locality, Kundur, is late−early Maastrichtian; and the other, Blagoveschensk, is early−late Maast ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anatoly Riabinin
Anatoliy Riabinin (11 June 1874-2 February 1942) was a Russian geologist and vertebrate paleontologist. In the 1910s, Riabinin led the first paleontological expeditions to the Amur (in 1914 and 1916–17). The hadrosaurid '' Amurosaurus riabinini'' is named for him. In 1925, he described the first dinosaur from China (though excavated in 1914). It initially bore the name ''Trachodon amurense'', though he renamed it ''Mandschurosaurus'' in 1930. He also conducted studies on fossilised turtles. In 2020, the ornithopod dinosaur genus known as ''Riabininohadros'' was named for him. In 1942, he perished during the Siege of Leningrad. Several of his works were posthumously published in the late 1940s (publications appeared in 1945 and 1946). He thus described ''Batrachognathus ''Batrachognathus'' is an extinct genus of anurognathid pterosaur from the Late Jurassic ( Oxfordian to Kimmeridgian) Karabastau Formation of the central Asian republic of Kazakhstan. The genus was named in 1948 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lambeosaurinae
Lambeosaurinae is a group of crested hadrosaurid dinosaurs. Classification Lambeosaurines have been traditionally split into the tribes or clades Parasaurolophini (''Parasaurolophus'', ''Charonosaurus'', others (?).) and Lambeosaurini (''Corythosaurus'', ''Hypacrosaurus'', ''Lambeosaurus'', others.). Corythosaurini (synonym of Lambeosaurini, see below) and Parasaurolophini as terms entered the formal literature in Evans and Reisz's 2007 redescription of ''Lambeosaurus magnicristatus''. Corythosaurini was defined as all taxa more closely related to ''Corythosaurus casuarius'' than to ''Parasaurolophus walkeri'', and Parasaurolophini as all those taxa closer to ''P. walkeri'' than to ''C. casuarius''. In this study, ''Charonosaurus'' and ''Parasaurolophus'' are parasaurolophins, and ''Corythosaurus'', ''Hypacrosaurus'', ''Lambeosaurus'', ''Nipponosaurus'', and ''Olorotitan'' are corythosaurins. However, later researchers pointed out that due to the rules of priority set forth b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sahaliyania
''Sahaliyania'' (from "black" in Manchu, a reference to the Amur/ Heilongjiang River) is a genus of lambeosaurine hadrosaurid dinosaur (crested duckbilled dinosaur) from the Late Cretaceous of Heilongjiang, China. Discovery Its remains were found in a bonebed in the Maastrichtian-age Yuliangze Formation, alongside rarer remains of the hadrosaurine hadrosaurid (flat-headed duckbill) ''Wulagasaurus''. ''Sahaliyania'' was named by Pascal Godefroit and colleagues in 2008. It is one of several hadrosaurids from the Amur River region named since 2000. The type and only species to date is ''S. elunchunorum'', named in honor of the Elunchun people. ''Sahaliyania'' is based on GMH W453, a partial skull. Godefroit and colleagues assigned numerous other fossils from the bonebed to their new genus, representing much of the skull, pectoral girdle, upper arm, and pelvis. It can be distinguished from other hadrosaurids by a variety of anatomical details. Godefroit and colleagues perf ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Late Cretaceous
The Late Cretaceous (100.5–66 Ma) is the younger of two epochs into which the Cretaceous Period is divided in the geologic time scale. Rock strata from this epoch form the Upper Cretaceous Series. The Cretaceous is named after ''creta'', the Latin word for the white limestone known as chalk. The chalk of northern France and the white cliffs of south-eastern England date from the Cretaceous Period. Climate During the Late Cretaceous, the climate was warmer than present, although throughout the period a cooling trend is evident. The tropics became restricted to equatorial regions and northern latitudes experienced markedly more seasonal climatic conditions. Geography Due to plate tectonics, the Americas were gradually moving westward, causing the Atlantic Ocean to expand. The Western Interior Seaway divided North America into eastern and western halves; Appalachia and Laramidia. India maintained a northward course towards Asia. In the Southern Hemisphere, Australia and Ant ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blagoveschensk
Blagoveshchensk ( rus, Благове́щенск, p=bləgɐˈvʲeɕːɪnsk, meaning ''City of the Annunciation'') is a city and the administrative center of Amur Oblast, Russia. It is located at the confluence of the Amur and the Zeya Rivers, opposite to the Chinese city of Heihe. Population: The Amur has formed Russia's border with China since the 1858 Aigun Treaty and the 1860 Treaty of Peking. The area north of the Amur belonged to the Manchu Qing dynasty by the Treaty of Nerchinsk of 1689 until it was ceded to Russia by the Aigun Treaty in 1858. History Early history of the region The early residents of both sides of the Amur in the region of today's Blagoveshchensk were the Daurs and Duchers. An early settlement in the area of today's Blagoveshchensk was the Ducher town whose name was reported by the Russian explorer Yerofey Khabarov as Aytyun in 1652, as Aigun from 1683 to 1685, and as Aigun Old Town from 1685 until 1900 Amur anti-Chinese pogroms, the massacre in 1900, w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amur Oblast
Amur Oblast ( rus, Аму́рская о́бласть, r=Amurskaya oblast, p=ɐˈmurskəjə ˈobləsʲtʲ) is a federal subject of Russia (an oblast), located on the banks of the Amur and Zeya Rivers in the Russian Far East. The administrative center of the oblast, the city of Blagoveshchensk, is one of the oldest settlements in the Russian Far East, founded in 1856. It is a traditional center of trade and gold mining. The territory is accessed by two railways: the Trans-Siberian Railway and the Baikal–Amur Mainline. As of the 2010 Census, the oblast's population was 830,103. Amur Krai () or Priamurye () were unofficial names for the Russian territories by the Amur River used in the late Russian Empire that approximately correspond to modern Amur Oblast. Geography Amur Oblast is located in the southeast of Russia, between Stanovoy Range in the north and the Amur River in the south, and borders with the Sakha Republic in the north, Khabarovsk Krai and the Jewish Auto ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Russian Far East
The Russian Far East (russian: Дальний Восток России, r=Dal'niy Vostok Rossii, p=ˈdalʲnʲɪj vɐˈstok rɐˈsʲiɪ) is a region in Northeast Asia. It is the easternmost part of Russia and the Asian continent; and is administered as part of the Far Eastern Federal District, which is located between Lake Baikal in eastern Siberia and the Pacific Ocean. The area's largest city is Khabarovsk, followed by Vladivostok. The region shares land borders with the countries of Mongolia, China, and North Korea to its south, as well as maritime boundaries with Japan to its southeast, and with the United States along the Bering Strait to its northeast. The Russian Far East is often considered as a part of Siberia (previously during the Soviet era when it was called the Soviet Far East). Terminology In Russia, the region is usually referred to as just "Far East" (). What is known in English as the Far East is usually referred to as "the Asia-Pacific Region" (, abbrevia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geologic Formation
A geological formation, or simply formation, is a body of rock having a consistent set of physical characteristics ( lithology) that distinguishes it from adjacent bodies of rock, and which occupies a particular position in the layers of rock exposed in a geographical region (the stratigraphic column). It is the fundamental unit of lithostratigraphy, the study of strata or rock layers. A formation must be large enough that it can be mapped at the surface or traced in the subsurface. Formations are otherwise not defined by the thickness of their rock strata, which can vary widely. They are usually, but not universally, tabular in form. They may consist of a single lithology (rock type), or of alternating beds of two or more lithologies, or even a heterogeneous mixture of lithologies, so long as this distinguishes them from adjacent bodies of rock. The concept of a geologic formation goes back to the beginnings of modern scientific geology. The term was used by Abraham Gottlob Wer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
