Marnes Rouges Inférieures Formation
Geological formation in Occitania, France
From Wikipedia, the free encyclopedia
The Marnes Rouges Inférieures Formation is a Late Cretaceous geologic formation found in the French Pyrenees. It predominantly consists of red mustone, with minor brown mudstone and sandstone.[1] Dinosaurs, dinosaur eggs and avialian stem-birds have been reported from the formation.[2]
| Marnes Rouges Inférieures Formation | |
|---|---|
| Stratigraphic range: Maastrichtian ~ | |
| Type | Geological formation |
| Underlies | Calcaires de Vignevieille |
| Overlies | Grès d'Alet |
| Thickness | Over 150 m (490 ft) |
| Lithology | |
| Primary | Mudstone |
| Other | Sandstone |
| Location | |
| Coordinates | 42.9°N 2.3°E |
| Approximate paleocoordinates | 34.8°N 2.0°E |
| Region | Occitania |
| Country | France |
| Type section | |
| Named for | French: "Lower Red Marls" |
  Marnes Rouges Inférieures Formation (France) | |
Fossil content
Color key
|
Notes Uncertain or tentative taxa are in small text; |
Dinosaurs
Ornithischians
| Ornithischians of Marnes Rouges Inférieures Formation | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Location | Stratigraphic position | Material | Notes | Images |
| Rhabdodon | R. priscus | A rhabdodontid ornithopod | ||||
Sauropods
| Sauropods of the Marnes Rouges Inférieures Formation | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Location | Stratigraphic position | Material | Notes | Images |
| Ampelosaurus | A. atacis | A lirainosaurine lithostrotian | ||||
| Lirainosaurus | L. astibiae | A lirainosaurine lithostrotian | ||||
Theropods
| Theropods of the Marnes Rouges Inférieures Formation | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Location | Stratigraphic position | Material | Notes | Images |
| Gargantuavis | G. philoinos | A gargantuaviid avialan | ||||
Crocodilians
| Crocodilia of the Marnes Rouges Inférieures Formation | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Location | Stratigraphic position | Material | Notes | Images |
| Allodaposuchus | A. precedens | A allodaposuchid eusuchian | ||||
Turtles
| Turtles of the Marnes Rouges Inférieures Formation | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Location | Stratigraphic position | Material | Notes | Images |
| Foxemys | F. mechinorum | A bothremydid side-necked turtles | ||||