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Mengyin Formation
The Meng-Yin or Mengyin Formation () is a geological formation in Shandong, China, whose strata date back to the Berriasian and Valanginian stages of the Early Cretaceous.Mengyin Formation at Fossilworks.orgWilson & Upchurch, 2009 Dinosaur remains are among the fossils that have been recovered from the formation.Weishampel et al., 2004, "Dinosaur distribution (Late Jurassic, Asia).", pp.550–552 The type material for the titanosauriform dinosaur '''' was excavated at this formati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geological 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] |
List Of Dinosaur-bearing Rock Formations
This list of dinosaur-bearing rock formations is a list of geologic formations in which dinosaur fossils have been documented. Containing body fossils * List of stratigraphic units with dinosaur body fossils ** List of stratigraphic units with few dinosaur genera ** List of stratigraphic units with indeterminate dinosaur fossils Containing trace fossils * List of stratigraphic units with dinosaur trace fossils ** List of stratigraphic units with dinosaur tracks *** List of stratigraphic units with ornithischian tracks *** List of stratigraphic units with sauropodomorph tracks *** List of stratigraphic units with theropod tracks See also * Lists of fossiliferous stratigraphic units * List of fossil sites * Mesozoic The Mesozoic Era ( ), also called the Age of Reptiles, the Age of Conifers, and colloquially as the Age of the Dinosaurs is the second-to-last era of Earth's geological history, lasting from about , comprising the Triassic, Jurassic and Cretaceo ... {{DEFAULTSOR ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stegosauria
Stegosauria is a group of herbivorous ornithischian dinosaurs that lived during the Jurassic and early Cretaceous periods. Stegosaurian fossils have been found mostly in the Northern Hemisphere, predominantly in what is now North America, Europe, Africa, South America and Asia. Their geographical origins are unclear; the earliest unequivocal stegosaurian, ''Huayangosaurus taibaii'', lived in China. Stegosaurians were armored dinosaurs (thyreophorans). Originally, they did not differ much from more primitive members of that group, being small, low-slung, running animals protected by armored scutes. An early evolutionary innovation was the development of spikes as defensive weapons. Later species, belonging to a subgroup called the Stegosauridae, became larger, and developed long hindlimbs that no longer allowed them to run. This increased the importance of active defence by the thagomizer, which could ward off even large predators because the tail was in a higher position, pointing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dsungaripteridae
Dsungaripteridae is a group of pterosaurs within the suborder Pterodactyloidea. They were robust pterosaurs with good terrestrial abilities and flight honed for inland settings. Classification In 1964 Young created a family to place the recently found Chinese genus ''Dsungaripterus''. Later on, also ''Noripterus'' (then now with the name "Phobetor" which was already occupied, therefore the quotation marks) were assigned to the family. In 2003, Alexander Kellner gave the exact definition as a clade:Kellner, A.W.A., 2003. Pterosaur phylogeny and comments on the evolutionary history of the AN group. In: Buffetaut, E., Mazin, J.M. (Eds.), ''Evolution and Palaeobiology of Pterosaurs. Geological Society, London, Special Publication'' 217, 105–137. the group was composed out of the latest common ancestor of ''Dsungaripterus'', ''Noripterus'' and “Phobetor”, and all its descendants. As synapomorphies he gave the next six characteristics: a relatively small eye-socket, which is pla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sinemys
''Sinemys'' is an extinct genus of turtle from the Late Jurassic to Early Cretaceous of People's Republic of China, China and Japan. Three species have been named: ''S. lens'', the type species, from the Kimmeridgian-Tithonian of Shandong; ''S. gamera'' (named after the Gamera, movie monster of the same name), from the Valanginian-Albian of Inner Mongolia, Nei Mongol; and ''S. wuerhoensis'', from the Aptian-Albian of Xinjiang.''Sinemys'' The Paleobiology Database, retrieved 2008-04-02. References Further reading * Biology of Turtles by Jeanette Wyneken, Matthew H. Godfrey, and Vincent Bels Cryptodira Extinct turtles Prehistoric turtle genera Late Jurassic turtles Early Cretaceous turtles Late Jurassic genus first appearances Early Cretaceous genus extinctions L ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shantungosuchus
''Shantungosuchus'' is an extinct genus of Early Cretaceous crocodyliform found in China. It includes three species: ''Shantungosuchus chuhsienensis'' and ''S. brachycephalus'', which were both described by Yang Zhongjian – usually referred to as "Young" – in 1961 and 1982, and ''S. hangjinensis'', which was described by Xiao-Chun Wu et al in 1994. ''S. chuhsienensis'' is the type for this genus. Etymology The primary part of ''Shantungosuchus name comes from ''Shan-tung'', the Wade-Giles romanization of ''Shandong'' (), a province located on the eastern coast of the People's Republic of China, where it was first discovered. The second part, ''suchus'' is an Ancient Greek word referring to the Egyptian crocodile deity Sobek that is commonly used as a suffix for crocodylomorph genera and crocodile-like animals in general. Description ''Shantungosuchus chuhsienenis'' was first described from an articulated skeleton that was preserved as an impression of its ventral s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ordosemys
''Ordosemys'' is an extinct genus of sea turtle from the Cretaceous period The Cretaceous ( ) is a geological period that lasted from about 145 to 66 million years ago (Mya). It is the third and final period of the Mesozoic Era, as well as the longest. At around 79 million years, it is the longest geological period of t .... References Extinct turtles Early Cretaceous turtles Early Cretaceous reptiles of Asia Yixian fauna Paleontology in Shandong Fossil taxa described in 1994 {{paleo-turtle-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lycoptera
''Lycoptera'' is an extinct genus of fish that lived from the late Jurassic to Cretaceous periods in present-day China, North Korea, Mongolia and Siberia. It is known from abundant fossils representing sixteen species, which serve as important index fossil used to date geologic formations in China. Along with the genus ''Peipiaosteus'', ''Lycoptera'' has been considered a defining member of the Jehol Biota, a prehistoric ecosystem famous for its feathered dinosaurs, which flourished for 20 million years during the Early Cretaceous, where it occurs abundantly in often monospecific beds, where they are thought to have died in seasonal mass death events.Jin, F., Zhang, F.C., Li, Z.H., Zhang, J.Y., Li, C. and Zhou, Z.H. (2008). "On the horizon of ''Protopteryx'' and the early vertebrate fossil assemblages of the Jehol Biota." ''Chinese Science Bulletin'', 53(18): 2820-2827. ''Lycoptera'' is a crown group teleost belonging to an early diverging lineage of the Osteoglossomorpha, which co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tanichthys
''Tanichthys'' is a genus of freshwater fish in the carp family ( Cyprinidae) of order Cypriniformes. They are native to rivers and streams in China and Vietnam. Until recently, the type species, ''T. albonubes,'' was the only one known. In 2001, however, Freyhof and Herder described a new and very similar species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ..., ''T. micagemmae,'' from the Ben Hai River in Vietnam and V. H. Nguyen & S. V. Ngô described a third species from Vietnam. The name ''Tanichthys'' comes from the name of the Chinese Boy Scout leader, Tan, who discovered the first specimen. Species * '' Tanichthys albiventris'' F. Li, T. Y. Liao, J. Bohlen, Z. X. Shen, L. J. Zhao & S. Li, 2022 * '' Tanichthys albonubes'' S. Y. Lin, 1932 (White cloud mountain min ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sinamia
''Sinamia'' is an extinct genus of amiiform fish which existed in China, Japan, and possibly South Korea during the Early Cretaceous period. Like the related bowfin, it has an elongated low-running dorsal fin, though this was likely convergently evolved. Taxonomy After * ''Sinamia zdanskyi'' Stensiö, 1935 Meng-Yin Formation, Shangdong, China, Early Cretaceous * ''Sinamia huananensis'' Su, 1973 Yangtang Formation, Anhui, China, Early Cretaceous * ''Sinamia chinhuaensis'' Wei, 1976 Guantou Formation, Zhejiang, China, Early Cretaceous * ''Sinamia luozigouensis'' Li, 1984 Luozigou Formation, Jilin, China, Early Cretaceous * ''Sinamia poyangica'' Su and Li, 1990 Shixi Formation, Jiangxi, China, Early Cretaceous * ''Sinamia liaoningensis'' Zhang, 2012 Yixian Formation, Jiufotang Formation, Liaoning, China, Early Cretaceous (Aptian) * ''Sinamia kukurihime'' Yabumoto, 2014 Kuwajima Formation, Ishikawa, Japan, Early Cretaceous (Barremian) * ''Sinamia lanzhoensis'' Peng, Murray, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
