c/Jurassic geologic formations

Information
lexicalization	eng: Jurassic geologic formations
subclass of	(noun) an arrangement of people or things acting as a unit; "a defensive formation"; "a formation of planes" formation
has instance	c/Jurassic volcanism
has instance	e/Haynesville Shale
has instance	e/Inferior Oolite
has instance	e/Kimmeridge Clay
has instance	e/Oxford Clay