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Jialingpus
''Jialingpus'' is an ichnogenus of dinosaur, likely a theropod. Its footprints have been found in the Feitianshan Formation, a low-energy lake formation. Holotype is SCFP-24, which was found in Late Jurassic ( Oxfordian)-aged Yuechi tracksite at Huanglong, China. These footprints were found within the vicinity of those of the smaller theropod ''Minisauripus ''Minisauripus'' is an ichnogenus of dinosaur footprint. ''Minisauripus'' is regarded as the smallest pre KT-extinction dinosaur ever discovered. It was less than 20 cm (7.8 inches) long. Its footprints have been found in the Jinju Formation and ...'', meaning that ''Jialingpus'' likely hunted ''Minisauripus''. See also * List of dinosaur ichnogenera References Further reading * M. G. Lockley, J. Li, R. Li, M. Matsukawa, J.D. Harris and L. Xing. 2013. A review of the tetrapod track record in China, with special reference to type ichnospecies: implications for ichnotaxonomy and paleobiology. ''Acta Geologica Sinica ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Feitianshan Formation
The Feitianshan Formation is a geological formation Formation may refer to: Linguistics * Back-formation, the process of creating a new lexeme by removing or affixes * Word formation, the creation of a new word by adding affixes Mathematics and science * Cave formation or speleothem, a secondar ... in China. It dates back to the Early Cretaceous. Among the known ichnofossils are footprints of dinosaurs. Vertebrate ichnofauna References Further reading * {{cite book , last=Glut , first=Donald F. , title=Dinosaurs: The Encyclopedia. 3rd Supplement , year=2003 , publisher=McFarland & Company, Inc. , location=Jefferson, North Carolina , isbn=0-7864-1166-X , chapter=Appendix: Dinosaur Tracks and Eggs , page613–652, url-access=registration , url=https://archive.org/details/dinosaursencyclo00glut_2/page/613 Geologic formations of China Lower Cretaceous Series of Asia Sandstone formations Ichnofossiliferous formations ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Minisauripus
''Minisauripus'' is an ichnogenus of dinosaur footprint. ''Minisauripus'' is regarded as the smallest pre KT-extinction dinosaur ever discovered. It was less than 20 cm (7.8 inches) long. Its footprints have been found in the Jinju Formation and the Feitianshan Formation The Feitianshan Formation is a geological formation Formation may refer to: Linguistics * Back-formation, the process of creating a new lexeme by removing or affixes * Word formation, the creation of a new word by adding affixes Mathematics a ..., a low-energy lake formation. Its footprints were found within the vicinity of those of the larger '' Jialingpus''. Identification Based on the trackways, ''Minisauripus'' was possibly a hatchling theropod. However, ichnopalaeontologists aren't sure if it belonged to an actual juvenile dinosaur. The ''Minisauripus'' tracks show three distinct toes, unlike the tracks of similar-sized small dromaeosaurids such as '' Dromaeosauripus rarus'', which are didactyl, with t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Dinosaur Ichnogenera
This list of dinosaur ichnogenera is a comprehensive listing of all ichnogenera that have been attributed to dinosaurs, excluding class Aves (birds, both living and those known only from fossils) and purely vernacular terms. The list includes all commonly accepted ichnogenera, but also genera that are now considered invalid, doubtful (''nomen dubium''), or were not formally published (''nomen nudum''), as well as junior synonyms of more established names, and ichnogenera that are no longer attributed to dinosaurs. Scope and terminology There is no official, canonical list of dinosaur ichnogenera. An extensive list can be found in an appendix to Donald F. Glut's third supplement to his series of dinosaur encyclopedias (2003). The vast majority of citations are based on Glut's list; exceptions, such as more recent ichnotaxa, are noted. Synonymies are also after Glut. A B C D E F G H I J K L M N O __NOTOC__ P Q R S T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oxfordian (stage)
The Oxfordian is, in the ICS' geologic timescale, the earliest age of the Late Jurassic Epoch, or the lowest stage of the Upper Jurassic Series. It spans the time between 163.5 ± 1.0 Ma and 157.3 ± 1.0 Ma (million years ago). The Oxfordian is preceded by the Callovian and is followed by the Kimmeridgian. Stratigraphic definitions The Oxfordian Stage was called "Clunch Clay and Shale" by William Smith (1815–1816); in 1818 W. Buckland described them under the unwieldy title "Oxford, Forest or Fen Clay". The term Oxfordian was introduced by Alcide d'Orbigny in 1844. The name is derived from the English city of Oxford, where the beds are well developed, but they crop out almost continuously from Dorset to the coast of Yorkshire, generally forming low, broad valleys. They are well exposed at Weymouth, Oxford, Bedford, Peterborough, and in the cliffs at Scarborough, Red Cliff and Gristhorpe Bay. Rocks of this age are found also in Uig and Skye. The base of the Oxfordian Stage ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cenomanian
The Cenomanian is, in the ICS' geological timescale, the oldest or earliest age of the Late Cretaceous Epoch or the lowest stage of the Upper Cretaceous Series. An age is a unit of geochronology; it is a unit of time; the stage is a unit in the stratigraphic column deposited during the corresponding age. Both age and stage bear the same name. As a unit of geologic time measure, the Cenomanian Age spans the time between 100.5 and 93.9 million years ago (Mya). In the geologic timescale, it is preceded by the Albian and is followed by the Turonian. The Upper Cenomanian starts around at 95 Mya. The Cenomanian is coeval with the Woodbinian of the regional timescale of the Gulf of Mexico and the early part of the Eaglefordian of the regional timescale of the East Coast of the United States. At the end of the Cenomanian, an anoxic event took place, called the Cenomanian-Turonian boundary event or the "Bonarelli event", that is associated with a minor extinction event for marine spec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ichnogenus
An ichnotaxon (plural ichnotaxa) is "a taxon based on the fossilized work of an organism", i.e. the non-human equivalent of an artifact. ''Ichnotaxa'' comes from the Greek ίχνος, ''ichnos'' meaning ''track'' and ταξις, ''taxis'' meaning ''ordering''.Definition o'ichno'at dictionary.com. Ichnotaxa are names used to identify and distinguish morphologically distinctive ichnofossils, more commonly known as trace fossils. They are assigned genus and species ranks by ichnologists, much like organisms in Linnaean taxonomy. These are known as ichnogenera and ichnospecies, respectively. "Ichnogenus" and "ichnospecies" are commonly abbreviated as "igen." and "isp.". The binomial names of ichnospecies and their genera are to be written in italics. Most researchers classify trace fossils only as far as the ichnogenus rank, based upon trace fossils that resemble each other in morphology but have subtle differences. Some authors have constructed detailed hierarchies up to ichnosupe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dinosaur
Dinosaurs are a diverse group of reptiles of the clade Dinosauria. They first appeared during the Triassic period, between 243 and 233.23 million years ago (mya), although the exact origin and timing of the evolution of dinosaurs is the subject of active research. They became the dominant terrestrial vertebrates after the Triassic–Jurassic extinction event 201.3 mya; their dominance continued throughout the Jurassic and Cretaceous periods. The fossil record shows that birds are feathered dinosaurs, having evolved from earlier theropods during the Late Jurassic epoch, and are the only dinosaur lineage known to have survived the Cretaceous–Paleogene extinction event approximately 66 mya. Dinosaurs can therefore be divided into avian dinosaurs—birds—and the extinct non-avian dinosaurs, which are all dinosaurs other than birds. Dinosaurs are varied from taxonomic, morphological and ecological standpoints. Birds, at over 10,700 living species, are among ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Theropod
Theropoda (; ), whose members are known as theropods, is a dinosaur clade that is characterized by hollow bones and three toes and claws on each limb. Theropods are generally classed as a group of saurischian dinosaurs. They were ancestrally carnivorous, although a number of theropod groups evolved to become herbivores and omnivores. Theropods first appeared during the Carnian age of the late Triassic period 231.4 million years ago ( Ma) and included all the large terrestrial carnivores from the Early Jurassic until at least the close of the Cretaceous, about 66 Ma. In the Jurassic, birds evolved from small specialized coelurosaurian theropods, and are today represented by about 10,500 living species. Biology Diet and teeth Theropods exhibit a wide range of diets, from insectivores to herbivores and carnivores. Strict carnivory has always been considered the ancestral diet for theropods as a group, and a wider variety of diets was historically considered a characteri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Holotype
A holotype is a single physical example (or illustration) of an organism, known to have been used when the species (or lower-ranked taxon) was formally described. It is either the single such physical example (or illustration) or one of several examples, but explicitly designated as the holotype. Under the International Code of Zoological Nomenclature (ICZN), a holotype is one of several kinds of name-bearing types. In the International Code of Nomenclature for algae, fungi, and plants (ICN) and ICZN, the definitions of types are similar in intent but not identical in terminology or underlying concept. For example, the holotype for the butterfly '' Plebejus idas longinus'' is a preserved specimen of that subspecies, held by the Museum of Comparative Zoology at Harvard University. In botany, an isotype is a duplicate of the holotype, where holotype and isotypes are often pieces from the same individual plant or samples from the same gathering. A holotype is not necessarily "typ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Late Jurassic
The Late Jurassic is the third epoch of the Jurassic Period, and it spans the geologic time from 163.5 ± 1.0 to 145.0 ± 0.8 million years ago (Ma), which is preserved in Upper Jurassic strata.Owen 1987. In European lithostratigraphy, the name "Malm" indicates rocks of Late Jurassic age. In the past, ''Malm'' was also used to indicate the unit of geological time, but this usage is now discouraged to make a clear distinction between lithostratigraphic and geochronologic/chronostratigraphic units. Subdivisions The Late Jurassic is divided into three ages, which correspond with the three (faunal) stages of Upper Jurassic rock: Paleogeography During the Late Jurassic Epoch, Pangaea broke up into two supercontinents, Laurasia to the north, and Gondwana to the south. The result of this break-up was the spawning of the Atlantic Ocean. However, at this time, the Atlantic Ocean was relatively narrow. Life forms of the epoch This epoch is well known for many famous types of dinosau ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yuechi County
Yuechi County () is a county in the east of Sichuan province, China, bordering Chongqing Municipality to the south. It is administratively governed by the prefecture-level city of Guang'an. The place is accessible by bus from Chengdu and Nanchong. The town is essentially sustained by its livestock and agricultural Agriculture or farming is the practice of cultivating Plant, plants and livestock. Agriculture was the key development in the rise of Sedentism, sedentary human civilization, whereby farming of Domestication, domesticated species created food ... activities, as well as agriculture-based manufacturing like bamboo-based carpet and beancurd, etc.; virtually without the presence of any significant industries. The town is planned and constructed with a main road plying the town center, linking the exit to the Chengnan expressway at one end and other suburban areas at the other. Climate References External links {{authority control County-level divisions o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Huanglong, Sichuan
Huanglong () is a scenic and historic interest area in the northwest part of Sichuan, China. It is located in the southern part of the Minshan mountain range, north-northwest of the capital Chengdu. This area is known for its colorful travertine pools formed by calcite deposits, especially in Huanglonggou (Yellow Dragon Gully), as well as diverse forest ecosystems, snow-capped peaks, waterfalls and hot springs. Huanglong is also home to many endangered species including the giant panda and the Sichuan golden snub-nosed monkey. In addition, a large population of the endemic orchid species 'Cypripedium plectrochilum' was discovered at the site Huanglong was declared a World Heritage Site by UNESCO in 1992 because of its outstanding travertine formations, waterfalls and limestone formations as well as its travertine terraces and lakes rating among the three most outstanding examples in the world. Description Repeated glaciation events, the unique terrane structure, the forma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
