Pages authored by Donald D. Carr:

1. Rock Unit Names / Blue River Group
   Type area: The Blue River Group was named Mississippian System by Gray, Jenkins, and Weidman (1960, p. 48) for the Blue River in Washington, Harrison, and Crawford Counties, Ind.
2. Blue River Group / Paoli Limestone
   Type locality, principal reference section, and history of nomenclature: The Paoli Limestone was named by Elrod (1899, p. 259) for Paoli, Orange County, near which are many exposures of the formation.
3. Blue River Group / Renault Formation
   Type locality, characteristic section, and use of name in Illinois: The Renault Limestone was named by Stuart Weller (1913, p. 120, 122) for exposures in Renault Township, Monroe County, Ill., but he designated no type section.
4. Blue River Group / St. Louis Limestone
   Type area and use of name: The name St. Louis Limestone was first used by Engelmann (1847, p. 119-120) with reference to extensive exposures of limestone near St. Louis, Mo.
5. Blue River Group / Ste. Genevieve Limestone
   Type locality and history of name in Indiana: The Ste. Genevieve Limestone was named by Shumard (1860, p. 406; 1873, p. 293-294) for exposures in the bluff of the Mississippi River south of Ste. Genevieve, Mo.
6. Paoli Limestone / Downeys Bluff Member
   Type section and use of name in Indiana: According to Atherton (1948, p. 129), the name Downeys Bluff was proposed in an unpublished manuscript by F. E. Tipple for a member of the Paint Creek Formation. The unit was later given formational status (Willman and others, 1975, p. 153).
7. Paoli Limestone / Popcorn Member
   Type section and history of name: The Popcorn Sandstone Bed was named by Swann (1963, p. 32-33) for 7 feet (2.1 m) of fine-grained calcareous sandstone at the base of the Paoli Limestone in Malott's (1952, p. 80) Popcorn Spring section in the SE¼SE¼SW¼ sec.
8. Paoli Limestone / Shetlerville Member
   Type section and use of name: The Shetlerville Formation was named by Stuart Weller (1920b, p. 123) for exposures of shale and limestone just east of Shetlerville, Hardin County, Ill.
9. Ste. Genevieve Limestone / Bryantsville Breccia Bed
   Type and reference sections: Although first used by Patton (1949, p.8), the name Bryantsville Breccia is usually attributed to Malott (1952, p. 9, 95-97), who wrote of three specific typical exposures near Bryantsville, Lawrence County, Ind.: (1) on the north side of US. Highway 50 in the NW¼NW¼ sec.
10. Ste. Genevieve Limestone / Levias Member
    Type locality and use of name: The name Levias Limestone Member was given by Sutton and Weller (1932, p. 430, 439) to the part of the Ste. Genevieve Limestone that is above what was then considered the Rosiclare Sandstone Member in the area just east of Levias, Crittenden County, Ky.
11. Ste. Genevieve Limestone / Lost River Chert Bed
    Type area, characteristic section, and use of name: The name Lost River Chert was given by Elrod (1899, p. 259) to rocks exposed along the dry bed of Lost River in Orange County.
12. Bond Formation / Carthage Limestone Member
    Type locality and use of name in Indiana: The name Carthage was first used in 1856 (Owen, p. 60) for a limestone exposed along the bank of the Ohio River 1 mile (1.6 km) west of Uniontown, Union County, western Kentucky. It was named for Carthage Settlement, which is no longer in existence.