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Andaikhudag Formation
The Andaikhudag Formation, in older literature referred to as Unduruh Formation or Ondorukhaa Formation, is an Early Cretaceous (Hauterivian to Barremian) geologic formation in Mongolia.Andaikhudag Formation in the remains diagnostic to the level are among the fossils that have been recovered from the formation.Weishampel et al., 20 ... [...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] |
Tsagaantsav Formation
The Tsagaantsav Formation, Tsagantsab Formation or Tsagan-Tsab Formation (Russian: Tsagaantsav Svita) is an Early Cretaceous (Hauterivian to Barremian) geologic formation in Mongolia.Tsagaantsav Formation in the Indeterminate and remains have been recovered from the formation.Weishampel et al., 2004, pp.517-607 Remains of the pte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Stratigraphic Units With Few Dinosaur Genera
This list of stratigraphic units with few non-avian dinosaur genera includes Mesozoic stratigraphic units of formation rank or higher that have produced dinosaur body fossils which have been referred to at most five genera. Since taxonomy frequently changes and can be somewhat subjective, the number of reported genera may not coincide exactly with the number of genera extant at the time of deposition. The list See also * 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 ... Footnotes References * Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. 861 pp. . {{DEFAULTSORT:List Of Stratigraphic Units With Few Dinosaur Genera Few dinosaur genera ... [...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] |
Plecoptera
Plecoptera is an order of insects, commonly known as stoneflies. Some 3,500 species are described worldwide, with new species still being discovered. Stoneflies are found worldwide, except Antarctica. Stoneflies are believed to be one of the most primitive groups of Neoptera, with close relatives identified from the Carboniferous and Lower Permian geological periods, while true stoneflies are known from fossils only a bit younger. Their modern diversity, however, apparently is of Mesozoic origin. Plecoptera are found in both the Southern and Northern Hemispheres, and the populations are quite distinct, although the evolutionary evidence suggests species may have crossed the equator on a number of occasions before once again becoming geographically isolated. All species of Plecoptera are intolerant of water pollution, and their presence in a stream or still water is usually an indicator of good or excellent water quality. Description and ecology Stoneflies have a generaliz ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tetraphalerus Notatus
''Tetraphalerus'' is a genus of beetles in the family Ommatidae, It is currently known from two extant species native to South America and several fossil species from the Jurassic and Cretaceous of Asia. Systematics According to Kirejtshuk, 2020. * †'' Tetraphalerus brevis'' Ponomarenko, 1964 Karabastau Formation, Kazakhstan, Oxfordian *'' Tetraphalerus bruchi'' Heller, 1913, recent, Northern Argentina * †'' Tetraphalerus collaris'' Ponomarenko, 1997 Dzun-Bain Formation, Mongolia, Aptian * †'' Tetraphalerus glabratus'' Ponomarenko, 1997 Togo-Khuduk Formation, Mongolia, Bajocian/Bathonian * †'' Tetraphalerus largicoxa'' Lin Qibin, 1986 Guanyintan Formation, China Toarcian/ Aalenian * †'' Tetraphalerus mongolicus'' Ponomarenko, 1986 Gurvan-Eren Formation, Mongolia, Aptian * †'' Tetraphalerus notatus'' Ponomarenko, 1997 Dzun-Bain Formation, Mongolia, Aptian *'' Tetraphalerus wagneri'' Waterhouse, 1901, recent, South America Formerly assigned species * † ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Allophalerus Bontsaganensis
''Allophalerus'' is an extinct genus of beetle in the family Ommatidae. Systematics * †''Allophalerus antiquus'' (Ponomarenko 1964) Karabastau Formation, Kazakhstan, Oxfordian * †''Allophalerus aphaleratus'' (Ponomarenko 1969) Kyzyl-Kiya, Kyrgyzstan, Pliensbachian * †''Allophalerus bontsaganensis'' (Ponomarenko 1997) Dzun-Bain Formation, Mongolia, Aptian * †''Allophalerus incertus'' (Ponomarenko 1969) Dzhil Formation, Kyrgyzstan, Hettangian The Hettangian is the earliest age and lowest stage of the Jurassic The Jurassic ( ) is a Geological period, geologic period and System (stratigraphy), stratigraphic system that spanned from the end of the Triassic Period million years ago (My ... * †''Allophalerus latus'' (Tan et al. 2007) Yixian Formation, China, Aptian * †''Allophalerus maximus'' (Ponomarenko 1968) Karabastau Formation, Kazakhstan, Oxfordian * †''Allophalerus okhotensis'' (Ponomarenko 1993) Emanra Formation, Russian Federation, Turonian * †'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coleoptera
Beetles are insects that form the order Coleoptera (), in the superorder Endopterygota. Their front pair of wings are hardened into wing-cases, elytra, distinguishing them from most other insects. The Coleoptera, with about 400,000 described species, is the largest of all orders, constituting almost 40% of described insects and 25% of all known animal life-forms; new species are discovered frequently, with estimates suggesting that there are between 0.9 and 2.1 million total species. Found in almost every habitat except the sea and the polar regions, they interact with their ecosystems in several ways: beetles often feed on plants and fungi, break down animal and plant debris, and eat other invertebrates. Some species are serious agricultural pests, such as the Colorado potato beetle, while others such as Coccinellidae (ladybirds or ladybugs) eat aphids, scale insects, thrips, and other plant-sucking insects that damage crops. Beetles typically have a particularly hard e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Syntemna Tele
''Syntemna'' is a genus of flies belonging to the family Mycetophilidae. The species of this genus are found in Eurasia and Northern America. Species: * '' Loewiella asinduloides'' Meunier, 1904 * '' Loewiella brevitarsis'' Meunier, 1923 References {{Taxonbar, from=Q14701117 Mycetophilidae ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
