Selborne Group

The Selborne Group is a geologic group in England. It preserves fossils dating back to the Cretaceous period. It comprises the Gault Formation (informally/traditionally the Gault Clay or Blue Marl) and the overlying Upper Greensand Formation (earlier known as the Malm or Malm Rock).^[1][2]

Selborne Group
Stratigraphic range: Albian-Cenomanian 113–94 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Type	Group
Sub-units	Gault Formation, Upper Greensand Formation
Underlies	Chalk Group
Overlies	Lower Greensand Group
Thickness	up to 110 m in the Weald, but in marginal areas may be less than 5 m thick.
Lithology
Primary	Glauconitic Sandstone,
Other	Mudstone, Limestone & Marl
Location
Region	England
Country	United Kingdom

See also

• Earth sciences portal
• England portal
• Paleontology portal

• List of fossiliferous stratigraphic units in England