Nemegt_Formation

From Wikipedia, the free encyclopedia Nemegt Formation Nemegt Formation Nemegt Formation Type Age Geological formation Late Cretaceous Lithology Location Region Asia The Nemegt Formation (or Nemegtskaya Svita) is a geological formation dating from the Late Cretaceous sedimentary from the Gobi Desert of Mongolia. It overlies and sometimes forms folds with the Barun Goyot Formation. It consists of river channel sediments and contains fossils of fish, turtles, crocodilians, birds and a diverse fauna of dinosaurs. The climate associated with it was wetter than when preceding formations were deposited; there seems to have existed at least some degree of forest cover. The absolute age of the Nemegt Formation is unknown but it is thought to be Maastrichtian or maybe late Campanian in age, very roughly some 76-65 million years old.[1] The presence of Saurolophus, a taxon also known from the Horseshoe Canyon Formation of Alberta, may indicate an Early Maastrichtian age, around 70 million years old. Flora and fauna of the Nemegt Formation Birds and other theropods Theropod dinosaurs of the Nemegt Formation Taxa Presence Description Images 1 From Wikipedia, the free encyclopedia Genus: • Adasaurus[1] 1. Adasaurus mongoliensis[1] Genus: • Alioramus[1] 1. Alioramus remotus[1] Genus: • Anserimimus 1. Anserimimus planinychus Genus: • Avimimus 1. Avimimus portentosus 2. Avimimus sp. Genus: • Bagaraatan 1. Bagaraatan ostromi Genus: • Borogovia 1. Borogovia gracilicrus Genus: • Deinocheirus[1] 1. Deinocheirus mirificus[1] Genus: • Elmisaurus 1. Elmisaurus rarus Genus: • Gallimimus[1] 1. Gallimimus bullatus[1] Genus: • Gurilynia 1. Gurilynia nessovi]] Genus: • "Ingenia" 1. "Ingenia" yanshini Genus: • Judinornis 1. Judinornis nogontsavensis Genus: • Mononykus A dromaeosaurid. Mononykus 1. olecranus Genus: Ali• Nemegtomaia oramus A tyrannosaur.1. Nemegtomaia barsboldi Genus: • Rinchenia An ornithomimid. Rinchenia 1. Gallimimus mongoliensis Genus: • Saurornithoides[1] Avimimids. 1. Saurornithoides Tarbosaurjunior[1] us Genus: • Tarbosaurus[1] 1. Tarbosaurus A coelurosaur or bataar[1] Theruncertain izinoclassification. saurus A troodontid. Genus: • Teviornis 1. Teviornis A giant ornithomimosaur.gobiensis Genus: • Therizinosaurus[1] 1. A caenagnathid. Therizinosaurus cheloniformis[1] Genus: • An ornithomimid. Tochisaurus 1. Tochisaurus nemegtensis An enantiornithine. Nemegt Formation Djadochta Formation. An oviraptorid. An oviraptorid. A troodontid. A tyrannosaur. Articulated skeletons are unusually common here. May also be present in the Djadochta Formation. An anseriform related to modern ducks and geese. A therizinosaur. A troodontid. Invertebrates Invertebrates of the Nemegt Formation Taxa Presence Description Images A nematode. An ostracod. An oviraptorid,Genus: • also found in the Ingenia Barun Goyot Genus: Formation. • Nemegtia A hesperornithine. Mammals Mammals of the Nemegt Formation An alvarezsaurid, also found in the Taxa Presence Description Images 2 From Wikipedia, the free encyclopedia Genus: • Buginbaatar 1. Buginbaatar transaltaiensis A Taxa multituberculate. Genus: • Nemegtosaurus 1. Nemegtosaurus mongoliensis Nemegt Formation Presence Description Images A titanosaur. Ornithischians Nemegtosaurus Genus: • Opisthocoelicaudia Ornithischian dinosaurs of the Nemegt Formation 1. Opisthocoelicaudia Taxa Presence Description Images skarzynskii A hadrosaurid. A titanosaur. Genus: • Barsboldia 1. Barsboldia sicinskii Genus: • Homalocephale 1. Homalocephale calathoceros Genus: • Saurolophus 1. Saurolophus angustirostris Genus: • Tarchia 1. Tarchia gigantea References Homa[1] lo- Barsbold, R. (1983). "Carnivorous ^ cephale. dinosaurs from the Cretaceous of A Mongolia [in Russian]." Trudy, pachycephalosaur. Sovmestnaâ Sovetsko−Mongol’skaâ paleontologičeskaâ èkspediciâ, 19: 1–120. A hadrosaurid. See also • An ankylosaur, • also found in the • • Barun Goyot • Formation. Barun Goyot Formation Djadochta Formation List of fossil sites Nemegt Basin List of dinosaur-bearing rock formations Sauropods Sauropod dinosaurs of the Nemegt Formation Retrieved from "http://en.wikipedia.org/wiki/Nemegt_Formation" Categories: Cretaceous paleontological sites, Geologic formation stubs, Dinosaur stubs This page was last modified on 14 May 2009, at 16:28 (UTC). All text is available under the terms of the GNU Free Documentation License. (See Copyrights for details.) Wikipedia® is a registered trademark of the Wikimedia Foundation, Inc., a U.S. registered 501(c)(3) taxdeductible nonprofit charity. Privacy policy About Wikipedia Disclaimers 3