Nemegt Formation

From Wikipedia, the free encyclopedia

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.[citation needed] 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.[citation needed]

Contents

[edit] Flora and fauna of the Nemegt Formation

[edit] Invertebrates

[edit] Mammals

[edit] Ornithischian dinosaurs

[edit] Sauropod dinosaurs

[edit] Theropod dinosaurs and birds

Illustration of Therizinosaurus cheloniformis.
Illustration of Therizinosaurus cheloniformis.

Articulated skeletons of adult Tarbosaurus are unusually common here.

[edit] References

  1. ^ a b c d e f g h Barsbold, R. (1983). "Carnivorous dinosaurs from the Cretaceous of Mongolia [in Russian]." Trudy, Sovmestnaâ Sovetsko−Mongol’skaâ paleontologičeskaâ èkspediciâ, 19: 1–120.

[edit] See also

Dinosaurs Portal
 This geology article is a stub. You can help Wikipedia and WikiProject Geology by expanding it.
 This dinosaur-related article is a stub. You can help Wikipedia by expanding it.