Crystal River Rock Co. Quarry - Bed 1 (Crystal River Limestone) (Eocene of the United States)

Where: Citrus County, Florida (28.9° N, 82.6° W: paleocoordinates 29.0° N, 75.0° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Crystal River Limestone Formation (Ocala Group), Late/Upper Eocene (37.2 - 33.9 Ma)

• STRATIGRAPHIC SOUCE: Individual bed (1) within measured section. STRATIGRAPHIC RELATIONS: Proposed for 108 ft of limestone exposed in Crystal River Rock Co., quarry. Includes all calcareous deposits of Late Eocene age, lying stratigraphically between the Williston Fm and the Oligocene limestones. The Crystal River Fm is synonomous with the "Ocala Limestone (restricted definition)". SPECIFIC STRATIGRAPHY: 8 ft thick limestone at base of 131 ft section.

• bed-level stratigraphic resolution

Environment/lithology: poorly lithified, yellow limestone

• GENERAL ENVIRONMENT: Environment not specified, but carbonate facies.
• SPECIFIC LITHOLOGY: Cream colored, very pasty, porous, soft limestone.

Size class: macrofossils

Collection methods: quarrying,

• SOURCE: Based on field collecting. REPOSITORIES: Unknown repository for molluscs, echinoids and foraminifera, presumably Florida Geological Survey.

Primary reference: H. S. Puri and R.O. Vernon. 1964. Summary of the geology of Florida and a guidebook to the classic exposures. Florida Geological Survey Special Publication 5 [A. Miller/A. Hendy]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 61112: authorized by Austin Hendy, entered by Austin Hendy on 29.05.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

• SOURCE: Vernon (1951) for all taxa. COVERAGE: Probably limited for all groups due to poor preservation. NOMENCLATURE: Slightly antiquated for molluscs and echinoids.
Foraminifera
 Nummulitacea - Nummulitidae
Heterostegina ocalana, "Operculinoides floridensis" = Nummulites, "Operculinoides sp." = Nummulites
"Operculinoides floridensis" = Nummulites
"Operculinoides sp." = Nummulites Lamarck 1801
 Rotaliacea - Rotaliidae
 Orbitoidacea - Lepidocyclinidae
Globothalamea
 Rotaliida - Cibicididae
 Loftusiida - Acervulinidae