Selborne Group

{{Short description|Geologic group in England}}

{{Use dmy dates|date=April 2022}}

{{Infobox rockunit

| name = Selborne Group

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| type = Group

| age = Albian-Cenomanian {{Fossil range|113|94}}

| period = Albian

| prilithology = Glauconitic Sandstone,

| otherlithology = Mudstone, Limestone & Marl

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| region = England

| country = United Kingdom

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| subunits = 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.

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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).{{Cite web|url=http://www.bgs.ac.uk/Lexicon/lexicon.cfm?pub=UGS|title=BGS Lexicon of Named Rock Units - Result Details}}{{Cite web|url=http://www.bgs.ac.uk/Lexicon/lexicon.cfm?pub=GLT|title=BGS Lexicon of Named Rock Units - Result Details}}