Pg. 130. Crystal River Formation. Proposed for the 108 feet of limestone exposed in Crystal River Rock Company quarry in Citrus County, [central Florida]. Includes all calcareous sediments of upper Eocene age (Jackson) lying stratigraphically between the Williston formation and the overlying Oligocene limestones.

Source: US geologic names lexicon (USGS Bull. 1200, p. 999).

Pg. 30-36. Cyrstal River formation of Ocala group. In this report, includes all limestone containing Jackson Eocene orbitoid and camerinid faunas that underlie the Marianna limestone or younger beds and overlie beds of Cook Mountain (early middle Eocene) age with OPERCULINOIDES SABINENSIS. White to cream-colored soft granular permeable limestone. Thickness in Jackson County, northern Florida, about 200 feet including Bumpnose member (new).

Source: US geologic names lexicon (USGS Bull. 1200, p. 999).

Pg. 31-38. Crystal River formation of Ocala group. Moore (1955) erroneously included in the unit all upper Eocene beds overlying the OPERCULINOIDES SABINENSIS faunizones of the Lisbon formation (Claiborne). Bumpnose member is not considered a valid stratigraphic unit. Type locality stated.
Type locality: Crystal River Rock Company quarry, in NE/4 SW/4 sec. 6, T. 19 S., R. 18 E., Citrus Co., central FL.

Source: US geologic names lexicon (USGS Bull. 1200, p. 999).

Pg. 38. Crystal River Formation of Jackson Group. White to cream medium-textured to coquinoid limestone that is soft and chalky to compact and brittle, and rather pure. Thickness 120 feet in Covington County. Present in south-central and southeast Alabama. Grades westward into the Yazoo Clay. Age is Eocene (Priabonian; Jackson).
See also L.D. Toulmin, 1977, Alabama Geol. Survey Mon., no. 13, p. 123-126.

Source: Publication.

Pg. 6-7. †Crystal River formation of †Ocala Group. Puri (1957) raised Ocala to group and recognized formations [Crystal River, Inglis, and Williston] based on foraminiferal faunas. As a result of the biostratigraphic nature of these subdivisions, formation recognition is often difficult. In keeping with the intent of the Code of Stratigraphic Nomenclature, in this text, the Florida Geological Survey is returning to the use of the Ocala Limestone terminology. (See entry under Ocala.)

Source: Publication.

Jackson Group in the study area includes (ascending) Moodys Branch Formation, Yazoo Clay, and Crystal River Formation. In south-central AL, the Shubuta Member of Yazoo Clay intertongues with the Crystal River Formation. In this area, the Crystal River overlies the Pachuta Marl Member and underlies the Bumpnose Limestone of the Vicksburg Group. To the east and into the FL panhandle, the other members of the Yazoo Clay also grade into the Crystal River. In these areas, the Crystal River is considered to be equivalent to the entire Yazoo Clay interval of MS. The Yazoo interval is also represented by the Crystal River Formation in the subsurface in Baldwin Co. AL. Unit is approximately 60 ft thick in south-central AL where it consists of white fossiliferous, argillaceous, silty limestone.

Source: GNU records (USGS DDS-6; Reston GNULEX).