Type locality and use of name: The name Curdsville Bed (and
Curdsville Substage) was given originally by Miller (1905) to 30
feet (9 m) of fossiliferous and partly cherty rocks exposed at
Curdsville in Mercer County, Ky. There it was considered to be
the lowermost unit of what is now called the Lexington
Limestone. After a period of use at different ranks in Kentucky.
It was assigned member status by Black, Cressman, and MacQuown
(1965). Their name, the Curdsville Limestone Member (Lexington
Limestone), is here adopted with slight modification and
assigned to corresponding rocks in Indiana. An Indiana reference
section is designated as the pertinent rocks cored in Indiana
Geological Survey drill hole 133 on the Robbins farm in see. 1,
T. 2 N., R. 1 W., Switzerland County. In this core the
Curdsville is 15 feet (4.6 m) thick. Description, distribution,
and correlation: The Curdsville Member of the Lexington
Limestone is the lower of two named subdivisions of the
Lexington Limestone in Indiana. (See the article