Sand Wells Formation

Last updated
Sand Wells Formation
Type Geological formation

The Sand Wells Formation is a Mesozoic geologic formation in the United States. Dinosaur remains are among the fossils that have been recovered from the formation, although none have yet been referred to a specific genus. [1]

The Mesozoic Era is an interval of geological time from about 252 to 66 million years ago. It is also called the Age of Reptiles, a phrase introduced by the 19th century paleontologist Gideon Mantell who viewed it as dominated by diapsids such as Iguanodon, Megalosaurus, Plesiosaurus and Pterodactylus. To paleobotanists, this Era is also called the Age of Conifers.

Dinosaur Superorder of reptiles (fossil)

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, 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 million years ago; their dominance continued through the Jurassic and Cretaceous periods. Reverse genetic engineering and the fossil record both demonstrate that birds are modern feathered dinosaurs, having evolved from earlier theropods during the late Jurassic Period. As such, birds were the only dinosaur lineage to survive the Cretaceous–Paleogene extinction event 66 million years ago. Dinosaurs can therefore be divided into avian dinosaurs, or birds; and non-avian dinosaurs, which are all dinosaurs other than birds. This article deals primarily with non-avian dinosaurs.

A genus is a taxonomic rank used in the biological classification of living and fossil organisms, as well as viruses, in biology. In the hierarchy of biological classification, genus comes above species and below family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus.

Contents

See also

Footnotes

  1. ↑ Weishampel, et al. (2004). "Dinosaur distribution." Pp. 517-607.

Related Research Articles

The Calizas y margas de Xert Formation or Xert Formation is a Cretaceous period geologic formation in Spain.

The Cimarron Ridge Formation is a Mesozoic geologic formation in the United States. Dinosaur remains are among the fossils that have been recovered from the formation, although none have yet been referred to a specific genus.

The Dakhla Formation is a Maastrichtian geologic formation in Egypt. Dinosaur remains are among the fossils that have been recovered from the formation, although none have yet been referred to a specific genus.

The Garita Creek Formation is a Mesozoic geologic formation in New Mexico. Dinosaur remains are among the fossils that have been recovered from the formation, although none have yet been referred to a specific genus.

The Izuki Formation is a Mesozoic geologic formation in Japan. Dinosaur remains are among the fossils that have been recovered from the formation, although none have yet been referred to a specific genus.

The Jinju Formation is a Mesozoic geologic formation in South Korea. Dinosaur remains are among the fossils that have been recovered from the formation, although none have yet been referred to a specific genus.

The Marnes d'Auzas Formation is a Mesozoic geologic formation in France. Dinosaur remains are among the fossils that have been recovered from the formation, although none have yet been referred to a specific genus.

The Masuk Formation is a Mesozoic geologic formation in the United States. Dinosaur remains are among the fossils that have been recovered from the formation, although none have yet been referred to a specific genus.

The Palau Formation is a Mesozoic geologic formation in Mexico. Dinosaur fossils have been recovered from the formation, although none have yet been referred to a specific genus.

The Pictured Cliffs Formation is a Campanian geologic formation in New Mexico. Dinosaur remains are among the fossils that have been recovered from the formation, although none have yet been referred to a specific genus.

The Raritan Formation is a Mesozoic geologic formation. Dinosaur remains are among the fossils that have been recovered from the formation, although none have yet been referred to a specific genus.

The Reuchenette Formation is a Mesozoic geologic formation in Switzerland. Dinosaur remains are among the fossils that have been recovered from the formation, although none have yet been referred to a specific genus.

The Patcham Formation is a Mesozoic geologic formation of Patcham Island, India. Dinosaur remains are among the fossils that have been recovered from the formation, although none have yet been referred to a specific genus.

The Telegraph Creek Formation is a Mesozoic geologic formation in Montana, United States. Dinosaur remains are among the fossils that have been recovered from the formation, although none have yet been referred to a specific genus.

The Tiki Formation is a Mesozoic geologic formation in India. Dinosaur remains are among the fossils that have been recovered from the formation, although none have yet been referred to a specific genus.

The Zoumagang Formation is a Mesozoic geologic formation in China. Dinosaur remains are among the fossils that have been recovered from the formation, although none have yet been referred to a specific genus.

Baños del Flaco Formation

The Baños del Flaco Formation is a Mesozoic geologic formation in central Chile. Fossil ornithopod tracks have been reported from the formation.

The Marnes Rouges Inferieures Formation is a Mesozoic geologic formation in France. Fossil dinosaurs, dinosaur eggs and avialian stem-birds have been reported from the formation.

The Lossiemouth Sandstone Formation is a Late Triassic (Ladinian–Norian) age geological formation. It is exposed on the south side of the Moray Firth near Lossiemouth and near Golspie in Sutherland. Dinosaur remains are among the fossils that have been recovered from the formation.

The Argiles de Châtillon is a geologic formation in France. It preserves fossils dating back to the Jurassic period. Dinosaur remains are among the fossils that have been recovered from the formation, although none have yet been referred to a specific genus.

References

International Standard Book Number Unique numeric book identifier

The International Standard Book Number (ISBN) is a numeric commercial book identifier which is intended to be unique. Publishers purchase ISBNs from an affiliate of the International ISBN Agency.


This page is based on this Wikipedia article
Text is available under the CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.