( n. )
The lowest of the three divisions of the Jurassic period; a name given in England and Europe to a series of marine limestones underlying the Oolite. See the Chart of Geology.
( n. )
The lowest of the three divisions of the Jurassic period; a name given in England and Europe to a series of marine limestones underlying the Oolite. See the Chart of Geology.
Webster's Revised Unabridged English Dictionary. Пересмотренный полный словарь английского языка Webster. 2012