Marnes Rouges Inférieures Formation

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 ~70–66 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
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 / 42.9; 2.3
Approximate paleocoordinates	34.8°N 2.0°E / 34.8; 2.0
Region	Occitania
Country	France
Type section
Named for	French: "Lower Red Marls"
Marnes Rouges Inférieures Formation (France)

Paleofauna

• Allodaposuchus precedens
• Ampelosaurus atacis
• Foxemys mechinorum
• Gargantuavis philoinos
• Lirainosaurus astibiae
• Rhabdodon priscus

See also

• List of dinosaur-bearing rock formations
  • List of stratigraphic units with dinosaur trace fossils
    • Dinosaur eggs