Dyrham Formation

Dyrham Formation
Dyrham Formation
Stratigraphic range: Pliensbachian PreꞒ Ꞓ O S D C P T J K Pg N
Type	Formation
Unit of	Lias Group
Sub-units	Eype Clay Member, Down Cliff Sand Member, Thorncombe Sand Member
Underlies	Beacon Limestone Formation, Marlstone Rock Formation
Overlies	Charmouth Mudstone Formation
Area	Wessex Basin, Worcester Basin, East Midlands Shelf
Thickness	~125 m
Lithology
Primary	mudstone, silt, sand
Other	ferruginous limestone
Location
Region	England
Country	United Kingdom
Type section
Named for	Dyrham
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The Dyrham Formation is a geologic formation in England. It preserves fossils dating back to the early part of the Jurassic period (Pliensbachian).^[1]

References

^ British Geological Survey. "Dyrham Formation". BGS Lexicon of Named Rock Units. Retrieved 8 March 2018.

Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.

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Dyrham Formation
Stratigraphic range: Pliensbachian PreꞒ Ꞓ O S D C P T J K Pg N

Type	Formation
Unit of	Lias Group
Sub-units	Eype Clay Member, Down Cliff Sand Member, Thorncombe Sand Member
Underlies	Beacon Limestone Formation, Marlstone Rock Formation
Overlies	Charmouth Mudstone Formation
Area	Wessex Basin, Worcester Basin, East Midlands Shelf
Thickness	~125 m
Lithology
Primary	mudstone, silt, sand
Other	ferruginous limestone
Location
Region	England
Country	United Kingdom
Type section
Named for	Dyrham